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Rating is 4.8 out of 5.
4.8/5
based on 289 client reviews
  • $125 hourly

    • 4.9/5
    • (52 jobs)
    I’m Kevin. I design things. Over the last ten years I have taken over twenty commercial products from concept to manufacture while navigating startup challenges along the way. I am “practical” above all else. A team player and easy to communicate with, I am able to take rough concepts and deliver them as working products or prototypes with minimal cost and hassle. My specialty is electronic hardware design, though most projects involve physical or mechanical parts as well. This is my full time job, working from my dedicated workshop near Portland, Oregon. I have in-house capability for most aspects of bringing up new designs and fabricating one-off devices or prototypes. We have high resolution SLA 3D printing (UV resin), a large 4x8’ production CNC machine suitable for plastics and most aluminum, and plenty of bench/floor space for your project. I have relationships with various local machine shops and test labs, so extra support is convenient if needed. I work in Altium Designer for schematic and PCB board layout, and use Solidworks or Autodesk Fusion for physical component design and working with complex physical assemblies. I have designed many injection molded parts, stamped metal parts, etc. Many of my products involve radio so I’m familiar with the FCC test lab process for both module based radios and custom designs. I have designed Internet of Things IoT products, wireless mesh networking, and low cost proprietary point to point radios. I am intermediate level coding on small 8 to 32 bit microprocessors in C,C++. My code is extremely "human readable" and cleanly documented. I have solid experience with Mircochip PIC processors, Atmel, STM32, and MSP430. I have written several low level handlers for custom board hardware and protocols. If you’re looking for a competent person that is easy and reliable to work with, and who will handle your project as if it were their own, let’s chat and see what happens. Electronics: -Embedded Hardware Design -PCB Circuit Board Design -Low-level Microprocessor Coding, C, C++, Python -Radio Wireless Communications and Certification -Internet of Things, IoT, Mesh Networking, Zigbee -Robotics -Automation -Short Run PCB Assembly -Prototyping and Test Fixtures (in house) -Reverse Engineering, Proprietary Protocols -Testing, Debugging, Product Validation Mechanical: -Solidworks -Autodesk Inventor / Fusion360 -Complex Assembly Design -Process, Testing, and Assembly Fixtures -Injection Molding -High Resolution SLA 3D Printing (in house) -CNC Machining (in house) -Industrial Processing Fixtures -Plastics Fabrication (Tanks, Jigs, Wet Processing, etc.) -Rapid Prototypes and 3D Printing for Industrial Parts -Moving Parts, Gearing, Bearings, etc. Support Services: -Connections with Contract Manufacturers -Crowdfunding, I've raised approx $400k via Kickstarter, Indiegogo -Relationships with Asian and China Manufacturers -Injection Molding & Stamped Metal Parts from Asia -Patent Experience (I hold 7 Patents)
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Firmware
    Arduino Firmware
    Circuit Design
    PCB Design
    Injection Mold
    Electrical Engineering
    Electronic Design
    Product Design
    Hardware Prototyping
    SolidWorks
    3D Printing
    Product Development
    Mechanical Design
  • $110 hourly

    • 5.0/5
    • (189 jobs)
    If you have a new antenna design that needs to work in a challenging RF environment, or a design that needs help meeting specification, or some other RF issue, I can help. With over 35 years of experience in antenna and RF design and over 20 years of electromagnetic simulation software experience, I am dedicated to designing, modeling, and testing your antenna system from conception to final product. I spent the early part of my career working for the Boeing Company. Several of those years were as the lead engineer at an outdoor antenna test range, and I also was the first FEKO user at Boeing designing and integrating antenna systems on aircraft platforms. In addition, I was one of the first FEKO users in the US back in 2001. More recently I have covered a wide array of antenna and RF applications, ranging from designs for small mobile devices to large arrays. The largest percentage of the types of work I encounter involves extensive simulation, both for creating a design and for determining expected performance for antennas in real-world situations. The applications can range from WiFi, Bluetooth, and cellphone to AM/FM, VHF, and UHF designs. No matter the project, my goal is to meet the needs of the client and earn repeat valued customers.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Antenna Testing
    Cosite Analysis
    Antenna Measurement
    RF Microwave Design
    FEKO
    Engineering Simulation
    Antenna Design
  • $85 hourly

    • 4.9/5
    • (41 jobs)
    Freelance Electronic Designer specializing in PCB and Schematic designs using Altium and EagleCad. 30 years of Electronics Experience with discrete, digital, power, microprocessor, RF, and USB designs. Currently building an innovative device for Amateur Radio Digital Communications as a personal project. Have completed certified circuits for Aviation and Marine environments.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    PCB Design
    USB Electronics
    Circuit Design
    Eagle
    Electronic Design
    Altium Designer
    Multilayer PCB
  • $35 hourly

    • 4.9/5
    • (161 jobs)
    My skills and experiences are Antenna, Low Noise Amplifiers, Active and reconfigurable Antenna, RF and Microwave sensors, Analog design, simulation (CST STUDIO SUITE commercial license), prototyping and testing in professional lab environment. In particular, antenna for mobile devices, smart antennas, electrically small antennas, beam forming, beam steering, real-time location system, tracking, IoT, RFID, NFC, LoRa, WiFi, BLE, radar, 5G, wireless Ethernet etc, high speed pcb design, Signal Integrity, EMC. I provide support and consulting, ranging from concept formulation and design, through to prototyping, testing, FCC/CE/KC certification, measuring and troubleshooting, chip decapping. I hold full access to standard electronics lab equipped with: network and spectrum analyzer, EMI test equipment, anechoic chamber, PCB manufacturing and SMT assembling tools etc. Apart from that, I also provide assistance and support with the writing of reports, extended essays, dissertations, theses, and scientific publications; from formulating the proposal and the working hypothesis (research outline) to proofreading and editing.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Wireless Communication
    RF Microwave Design
    Amplifiers & Filters
    Scientific Writing
    Physics
    Electronic Design
    Hardware Prototyping
    Analog Electronics
    Circuit Design
    RFID
    Antenna Design
  • $75 hourly

    • 3.8/5
    • (19 jobs)
    37 years experience in all aspects of RF and radar -- RCS, antennas (design and development), RF design and production, software, algorithms, and phenomenology. This background extends to RFID, and other transponder-based products and designs. . Years of experience in setup, operation, coding, networking, and serial communication of embedded CPU's, including Raspberry Pi's, Arduino's, and x86-x64. Strong background in Raspberry Pi OS (Raspbian), Ubuntu, Linux, Twister OS, and Windows setup and coding. . Also skilled in software development for advanced and new technologies with a high level of proficiency in Python. Also years of experience in .Net, HTML, with some basic skills in C, C#, and JavaScript. . Have worked for years on IoT, digital electronics, motors (including stepper), A/D boards, networks, digital signal processing, and image processing (including object classification). . Used these skills to develop new products, and marketing experience for sales and business development. Managed teams of engineers and technicians for the companies I have worked for, or in my own startups.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Product Concept
    Systems Engineering
    Software Integration
    Embedded System
    Raspberry Pi
    Python
    Sensor
    Digital Signal Processing
    Algorithm Development
    Data Analysis
    Embedded Application
    Python Script
    Antenna Design
    RFID
  • $30 hourly

    • 4.9/5
    • (88 jobs)
    PROFILE Formerly Ass. Prof. in the Military Technical College. • Microwave and RF system design engineer • Analog and digital circuit design engineer • CAD/CAM engineer for PCB design and manufacture by CNC machines • Microwave and RF circuit design engineer • Microwave receiver expert. • University lecturer (Microwaves, Receivers, Logic Circuits, Electromagnetic Fields and Computer Networks). KEY ACHIEVEMENTS • Design, implementation, and testing of hundreds of RF and MW filters. • Design, implementation, and testing of wide-band printed dipole antennas (2009- 2013). • Author of 24 papers published in different international conferences and academic magazines, most of which are single-author papers. • Design, implementation, and measurement of a complete DRFM. • Proposing a new method for digital frequency translation using DRFM. It was published in a paper and successfully implemented. • Supervision of 4 MSc. Theses and 1 Ph.D. Thesis. • Reviewing 5 Msc. Theses and 5 papers. • Leading more than 30 graduation projects. • Hundreds of RF and Microwave PCB's have been designed by me and prototyped under my direct supervision. Most of those circuits were Microstrip circuits. Some coplanar waveguide circuits have also been designed and implemented. • FR4 was the main substrate in most designs. Different professional substrates (of Rogers and Arlon products) have been used in my designs with relative permittivity ranging between 2 and 10.5 and dielectric height between 0.2 and 2.6 [mm]. CAPABILITIES I can design RF systems and circuits, RF antennas and electronic circuits, give you full design and prototyping documentation (including design description, design equations and calculations, simulation results, schematic and layout drawings, Gerber files, Excellon files and BOM files, test procedures and test recommendations) and give full technical assistance to you in prototype building and testing. No prototype building No software coding
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Digital Electronics
    Electrical Engineering
    Circuit Design
    RF Microwave Design
    Electronic Design
    System Analysis
    Instrumentation
    Amplifiers & Filters
    Scientific Writing
    Analog Electronics
    PCB Design
    Antenna Design
    Eagle
  • $55 hourly

    • 4.8/5
    • (29 jobs)
    Hi! I am experienced and enthusiastic antenna and RF designer. Looking for interesting and challenging RF designing projects which can help me to grow as a professional. Personally I am more focused on: - RF design (RF PCB layout design and optimization); - Antenna design (from emmbeded antennas to antenna arrays); - EMC troubleshouting. For big and callenging proects I invite my friends who are excellent professionals. So together we can design the fully working poduct including hard-ware, soft-ware and mechanical design. 1st year on Upwork: more than 10 successfully accomplished projects (see the feedback section and the gallery); We are moving ahead and looking forward to provide your best solutions for your projects! Don't hesitate to contact me if you need a consultation on: - any type of antenna (RFID, NFC, ISM, WIFI, Bluetooth, CubeSat, radar, portable device and so on) - analysis of RF performance (radiation levels, EMC) Extended practical skills (10+ years) in antennas design: - Antenna Arrays, - Small antennas, embedded antennas (BLE, WiFi, NB IoT, LoRa, GNSS), - UHF devices design (splitters, filters, switchers) - CADs; - RF PCB design and optimization. We provide not just design but also prototype test, RF measurements, tunning and troubleshouting. Up to now we have: - VNA (up to 6 Ghz), - spectroanalyzer and tracking sweep generator (up to 5.5 GHz), - digital microscope, - soldering station, - power supply unit up to 200W, (see some of our equipment in the gallery).
    vsuc_fltilesrefresh_TrophyIcon RF Design
    CAD & CAM Software
    Filters
    Electronic Circuit Design
    Engineering Simulation
    Electronic Design
    PCB Design
    CAD Software
    Antenna Design
    Multilayer PCB
    Electronics
    RFID
    Antenna Testing
    RF Microwave Design
  • $108 hourly

    • 4.5/5
    • (154 jobs)
    Thank you for taking the time to view my profile. I am an electrical engineer with a background in hardware design and software development. I specialize in circuit design, PCB fabrication, and embedded systems programming. I also provide enterprise software engineering and web development services with a focus on control systems engineering. I also specialize in digital signal processing and machine learning for data, image, and audio processing. I'm happy to help you take your idea to the next level and beyond! I consider myself an engineer, inventor, designer, and artist. I love to find solutions to complex problems, invent new things, and test what is possible! Services: -Application development -Circuit design and PCB layout -Embedded systems programming -Unity Development -Web development -Database engineering -Project management -Technical writing -Master builder :)
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Unity
    Electronic Design
    Article Writing
    OpenCV
    C#
    Power Electronics
    SQL
    Machine Learning
    Technical Writing
    PCB Design
    Python
    C++
    nRF52
    Bluetooth
  • $20 hourly

    • 4.6/5
    • (11 jobs)
    Hi. I'm an electrical engineer with experience in the development of Electronic Circuit Schematic and PCB design, using CAD-Design Software like Altium, Eagle, EasyEDA and Kicad. Also, I have used simulation software to verify the behavior of the electronic circuit, like Proteus and MATLAB/Simulink, and also IDE to develop code to program microcontroller and development board, like MPLAB, Arduino IDE and Python. Embedded systems software engineer AVR, ST, Espressif, Realtek Main area of expertise: firmware development for micro-controllers and sensors. STM32, ESP8266, ESP32, Arduino, Raspberry Pi and more. Design Tools Experience: - Cadence Allegro/OrCAD; - Altium Designer; - KiCad; - EAGLE.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Eagle
    Hardware Prototyping
    Electronic Circuit Design
    Altium Designer
    OrCAD
    Circuit Design
    PCB Design
    C
    C++
    Python
    ESP32
    Embedded C
    Microcontroller Programming
  • $40 hourly

    • 5.0/5
    • (106 jobs)
    I am a PhD-Level experienced Antenna Design Engineer and capable of handling your project from initial planning stage to implementation. ✅Education 🔻 Ph.D. in Electrical Engineering 🔻Specialization: Antennas and electromagnetics ✅ Experience 🔻I have been working in the field of RF & Microwave Antennas for the last 8 years ✅ Technical Skills. I'm an expert in 🔻CST Microwave Studio Suit 3D EM Simulation 🔻Advanced Design System (ADS) 🔻High Frequency Structure Simulation (HFSS) 🔻AWR Microwave Office 🔻Altium Designer 🔻MATLAB/Multisim/Proteus/PSpice/Codblock/C++/LabView ✅ Paper and Thesis Editing Skills I offer valuable assistance in various written tasks, including the composition of reports, extended essays, dissertations, thesis, and scientific publications. I can support you throughout the entire process, from developing the initial proposal and outlining the research to providing thorough proofreading and editing for the final document. ✅Area expertise including: 🔻Antennas (single element, Array, MIMO for 5G/6G) 🔻RF circuits & antenna matching circuits 🔻Amplifiers / Filters 🔻Power dividers / feed network 🔻Phased Antenna Arrays 🔻mmWaves & THz antennas 🔻Wideband Arrays, Dual Polarized Arrays 🔻Beamforming and Calibration, Arrays measurements 🔻MIMO and Metamaterial phased array 🔻Array signal processing 🔻Low cost commercial antennas 🔻 Antennas for medical applications To support my work, I have access to a fully equipped anechoic chamber, furnished with state-of- the-art equipment such as network analyzers, EMI test equipment, and PCB assembly tools. This ensures that the prototyping, testing, and troubleshooting phases of the projects are carried out to the highest standards. With a dedication to delivering exceptional results, I am committed to providing the highest level of professionalism and expertise to every project I undertake.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Electromagnetic Simulation Software
    Power Electronics
    RF Microwave Design
    PCB Design
    Antenna Design
    Wireless Communication
    Communication Design
    Antenna Measurement
    Antenna Testing
    MATLAB
    Design Concept
    Digital Signal Processing
    Electrical Engineering
    Creative Writing
  • $120 hourly

    • 4.8/5
    • (119 jobs)
    Physicist specialised in Electromagnetism and Electronics, working like RF&MW engineer from 1989, designing, developing and manufacturing High Frequency devices and products. With a large industrial experience. My main skills are the antenna design, amplifiers, filters, mixers and complex RF systems. Experienced user of simulation tools like ADS, AWR, LTSpice, PSPICE, EM simulators like HPMomentum, FEM, Axiem, CST, HFSS and COMSOL Multiphysics, and PCB design tools like Altium, Eagle, OrCAD, Design Spark, etc.. Equipped with a complete laboratory for prototyping, manufacturing, testing and checking. Services I offer: - RF&MW and industrial consultancy. - Design and development of Electronics products. - Fast Prototyping and Testing. - Technical Reports and Feasibility Studies. - Asistance and support in papers, thesis, essays and scientific publications.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Antenna Testing
    PCB Design
    Electrical Layout Design
    RF Microwave Design
    Digital Electronics
    Amplifiers & Filters
    Circuit Design
    Analog Electronics
    Antenna Design
    3D Modeling
    Hardware Prototyping
    Physics
    Engineering Simulation
  • $75 hourly

    • 5.0/5
    • (29 jobs)
    CAD, GIS, FTTH, FTTx, OSP, KMZ, Shape files, Bead ACT, Census Data, middle mile, last mile, Point to Point design for broadband Telecommunications Experienced Engineer (25 yrs), with Electrical Engineering degree Telecom CAD and GIS Engineering Services: - Outside Plant (OSP) Right of Way (ROW) cabling CAD drawings for permitting and construction - Inside Plant (ISP) Design/Engineer/provide CAD drawings for Fiber Optic riser schematic and cabling maps - Fiber to the Home (FTTH) - GIS and KMZ/KML Maps - Broadband Equity Access and Deployment Program (BEAD) - Broadband Funding Feasibility Discovery - Census Tracts - Census Data - GIS Shape Files, KMZ Files, QGIS, ARCGIS, ESRI Engineering Design CAD Services: - Design/Engineer/provide CAD drawings for RF Distributed Antenna Systems for cellular, two-way radio - Bi-Directional Amplifier (BDA) systems, CATV - Design/Engineer/provide CAD drawings for Audio Visual Systems - Low voltage communications systems and schematics
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Drafting
    Project Engineering
    Google Maps API
    Engineering Design
    Fiber Optics
    GIS
    Telecommunications Engineering
    Engineering & Architecture
    AutoCAD Civil 3D
    Autodesk AutoCAD
  • $45 hourly

    • 5.0/5
    • (16 jobs)
    Electrical engineer with +17 years of industry expertise. Proven record in microelectronics, embedded design, and computer programming. I can help you in: # PCB design - technology selection: suggested key components - schematic capture: pdf / Altium project - PCB design : Altium PCB / Gerber files # Arduino programming and library design # Computer programming based on project size Hope to help you achieve your goals within budget and time frame! I am fresh new in the platform, and my profile is still under construction. Please contact me for more information.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Arduino
    Amplifiers & Filters
    Circuit Design
    Embedded C
    MATLAB
    Java
    Embedded System
    PCB Design
  • $81 hourly

    • 5.0/5
    • (29 jobs)
    Professional Summary: Electrical Engineer experienced in developing electronic products and automated test equipment/ procedures for commercial/industrial and aerospace/defense programs. Responsibilities include application of electrical hardware experience, analog / digital circuit design including simulation, validation, project management, efficient documentation including new product cost and excellent oral / written communication skills. Professional Experience: Rexnord Industries LLC (Zurn) 03/2018 –Present Cary, NC Senior Electronic Hardware Design Engineer • Lead hardware design of PCBs for IOT products serving the water control market (pressure relief valve monitors, sensor operated flush valves and faucets, incorporating RF LoRa, USB, Ethernet, I2C, serial, SPI, CAN, etc.). Responsibilities include technical specifications, system design, schematic capture, power management including DC-DC conversion and motor/solenoid control, PCB layout, design for cost, design for test, design for manufacturability, RF performance, EMC and FCC compliance, product safety, Firmware and programming, design validation testing and system integration. ARCA Technology LLC 01/2016 -03/18 Mebane, NC Electrical Engineer • Performed hardware/firmware design of PCBs for teller assisted self-service machines (cash, coin, cards, checks, printers, near field communications, Bluetooth, WIFI, ethernet, USB, serial, etc.). Responsibilities include requirements development, technical specifications, schematic capture, PCB layout, power management, motor control, configuration management, prototyping, design validation testing and systems integration. Ensign Bickford Aerospace and Defense Co. 2010 - 2015 Simsbury, CT Electrical Design Engineer • Lead electrical design of cross functional team (Requirements, schematic capture, simulation, power conversion via numerous topologies, PCB layout, embedded firmware (embedded C, ASM), high voltage DC/DC boost converter design (3.6 VDC to 1200 VDC, 1 W)) for explosive plug used in oil and gas exploration. • Responsible for microcontroller firmware (embedded C, ASM) and hardware design of custom automated test stands utilizing custom printed circuit board designs, and various National Instruments data acquisition components in support of electrical safe and arm devices (ESADs) to perform flight termination on several missile platforms for Raytheon and Lockheed Martin. • Performed electrical design of numerous defense and aerospace applications involving peripherals such as I2C, SPI, USB, ETHERNET, etc. Responsibilities included MIL-STD-810, MIL-STD-461 compliance and conformance to MIL- HDBK- 217. Examples include, shoulder mounted missile (SMAW II logic control unit for USMC) (3 VDC to 1500 VDC, 10 W) and special test equipment for firing actuators aboard several missile platforms, etc. United Technologies Corporation (UTC Power and Pratt and Whitney Power Systems) 2007 – 2010 South Windsor, CT Electrical Design Lead Engineer • Lead the electrical design of the PURE CYCLE, 280 kW, 480 VAC, 3 phase, power plant including power conversion (AC to DC and DC to AC), control firmware (embedded C) and instrumentation. • Validated electrical power generation and control systems for compliance with NFPA 70e (NEC), UL-508, UL-1741, IEEE-519 and IEEE 1547. • Served as the lead technical liaison for electrical systems for contract manufacturers, integrators and customers.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Bluetooth
    Microcontroller Programming
    Digital Electronics
    Embedded System
    Firmware Programming
    Testing
    PCB Design
    Hardware Design
    ESP32
    Hardware Prototyping
    Electronic Design
    Product Development
    Product Design
  • $150 hourly

    • 5.0/5
    • (41 jobs)
    I have over 22 years of experience working and consulting for tech companies in Silicon Valley. Every technical challenge that I had overcome assured me that with the right frame of mind, I could accomplish anything. Engineering is also my hobby, and I have been doing it since before high school. I was born with a soldering iron in one hand and writing code with the other. I designed the hardware for over 100 projects, most of them being sold today. Some notable ones are Snapchat Spectacles (designed most of the electronics and PCB layout), Thornwave Labs' Bluetooth DC Power Meter (PowerMon) and all the other projects on the webpage, various RF modules (RN-171, RN4020, RN52), and development boards designed while working at Microchip. I also created production testers, lots of C/C++ programming, and firmware design. What I can do for you? --------------------------- High Level: project management, research. I am very experienced with hardware design and firmware, which allows me to integrate them more efficiently. Hardware: circuit design, component selection, electrical schematic, PCB payout. I am using Altium Designer. I will provide you with everything you need to go to manufacturing: Gerber files, NC drill, pick and place, assembly diagrams, 3D prints, 3D STEP model, and electrical schematics as well as offer support after the project is completed. I have experience with analog and digital design, RF, high-speed design, microcontrollers, highly complex boards, LCDs. I can run Spice simulations as well. I worked with various technologies and protocols: SPI, I2C, UART, USB, CAN, RS-485, Ethernet, Bluetooth, WiFi, and so on. Prototyping: I will manufacture the prototypes at a much lower cost than average. Over the years, I have developed working relationships with manufacturers in China, hence the cost-saving. I also have a lot of equipment: multimeters, oscilloscope, logic analyzer, vector network analyzer, USB protocol analyzer, power supplies, digital electronic load, soldering equipment, computers, and so on... Certifications: I can assist and oversee the certification process for FCC, IC, and others. Firmware development: I have 24+ years of experience coding in C/C++ and 20 years of firmware development. I can architect and develop your firmware from the ground up. I am exceptionally versed in the ARM Cortex line of microcontrollers: STM32 and Nordic. I will provide you with production-quality firmware. I know the ST and the Nordic microcontrollers like the back of my hand. I can get firmware done very quickly and efficiently for these chips. Software development: Basic tools running in Linux/Windows/Mac, basic GUIs. I can develop all the software tools you need for debugging, testing, and manufacturing. Manufacturing: If your project reaches this phase, I can offer contract manufacturing services. I will be delivering your finished product, ready to sell. The rate I displayed is an average number. It can vary up or down based on the complexity of the project. My rate reflects the experience and knowledge I have. I am good at what I do. Also, keep in mind that I will not bill you for hours like lawyers do for the time they spend in the shower thinking about the project. I will bill you only for the hours I spend advancing the project in a meaningful way.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    STM32
    C
    RF Microwave Design
    Embedded Operating System
    Industrial Automation
    Linux
    WiFi
    Bluetooth
    Firmware Programming
    Analog Electronics
    Circuit Design
    Power Electronics
    Digital Electronics
    C++
    ARM Cortex-M
    PCB Design
  • $80 hourly

    • 4.6/5
    • (85 jobs)
    Senior Hardware Design Engineer | 12+ Years of Experience | IoT, PCB Design, and Embedded Systems Expert Hello! I’m a seasoned hardware design engineer with over 12 years of hands-on experience in developing innovative and reliable electronics solutions for a wide range of industries, including IoT, industrial automation, consumer electronics, Robotics, Wearables and medical devices. My Areas of Expertise Include: End-to-End hardware design. IoT (Internet of Things): Designing and integrating IoT devices for smart applications, with experience in sensor networks, data acquisition, and connectivity. Embedded Systems: Expertise in microcontroller-based systems, firmware development, and sensor integration. PCB Design & Layout: Proficient in high-speed PCB design, multilayer boards, and circuit optimization for performance and cost-effectiveness. Prototyping & Testing: Bringing designs to life with rapid prototyping and rigorous testing to ensure performance and reliability. DFM (Design for Manufacturing) & DFT (Design for Testability): Ensuring smooth production and scalability by designing hardware that’s ready for mass production. I have led projects from concept to commercialization, including designing products for clients in Europe and the USA, helping them solve complex hardware challenges and develop cutting-edge products. What I Offer: Tailored, end-to-end hardware design solutions Cost-effective product development with a focus on quality and reliability Transparent and effective communication Commitment to deadlines and delivering above expectations Let’s work together to turn your vision into reality! I’m here to help with everything from troubleshooting existing designs to creating new products from scratch.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Microcontroller Programming
    Embedded System
    Bluetooth LE
    STM32
    KiCad
    ESP32
    PCB Design
    EasyEDA
    Antenna Design
    Altium Designer
    nRF52832
    Internet of Things Solutions Design
    NFC
  • $25 hourly

    • 4.0/5
    • (66 jobs)
    Hello! My name is AN, professional hardware. My job is design hardware circuit, test circuit, program for electronic product and program software on PC to manage/communicate with circuit boards. Just give me your requirements/product specification. Then we can discuss about the deadline, price and other features. I have more than 10 years experience in design hardware for IoT Products, Consumer Products and Telecom Products. So I think i can try my best to complete your project with best result Below is my work flow in hardware design: - Receive your requirements, discuss to have final product/circuit specs - Design block diagram for circuit: need to very detail, it will decide what part will be used in project - Design schematics: follow block diagram to design schematic for product - Design PCB Layout: with requirement about Mechanical Design and Industrial Design, i will do the PCB Layout the fit with your MD that archive best performance - Extract production data: BOM, CAD, GERBER, DESIGN, ASSEMBLY GUIDELINE, IMPEDANCE CONTROL REQUIREMENTS, ... Something about my experience: - About microcontroller: STM32F0/F1/F2/F4/F7, MSP430, MSP432, ATMEGA, ATSAM, PIC, ... - About SoC and MPU: NXP B4860, FBGA J-link, Amlogic T962X,iMX6, mini –iMX8… - About dev board: NXP, Arduino, ADI and TI tranceiver board for 4G, Avago, NXP Amplifier, Amplenol Amplifier, Boardcom 4G board, renesas control BLDC motor... - About Wireless MCU: ESP8266, ESP32, CC2530, CC2538, DA14580/14583, CC2540/41, nRF51822/nRF52840, CC1310, ... - About Sensor: CMOS Image Sensor, light sensor, CO, Smoke Sensor, Dust Sensor, Air Sensor, pH sensor, .... - About wireless communication: WiFi, BLE4.0/4.1/4.0, Zigbee, Sub1GHz, ... - About GPRS/3G/LTE Module: SIM800C/H, SIM900A, SIM908, SIM5320, SIM5360, Quectel MC60/M95/UC15/UC20/EC20, Sierra HL8548, SIM7600E. - About highspeed PCB Design: DDR3/DDR4, CPRI 9.8Gpbs,SMGII, HDMI, USB2.0/3.0/TypeC, eMMC, ... - About Power supply : AC-DC powersupply use topology fly-back, buck ( TI: TNY280/290, STM VIPer06XS…) - About simulation: Power supply simulation( ripple, loss, current…), Highspeed simualtion, Antenna PCB simualation… - About Mass Production: I can help you prepare production data that help you do the mass production. I also have experience in mass production process for 4G Basestation Marco, smallcell and Home Gateway with very big quantity, so i will know how to design for manufacturing with your product, design mass production process, etc Some of my product that I have designed and released to the market: - 4G base station: using SoC with 8 DDR3-RAM 2166 Gbps, eMMC 16GB, TRX tranceiver with 1.8Ghz, CPRI 9.8Gpbs interface, Amplifier 4 port power up to 60 W, Power supply with requiment lighting protect, EMI&EMC… -Home application: Design Air- conditinal use toshiba IC, control motor BLDC, have FPC to 7 A -380 V, power supply 1000 W. temperature resistor sensor, Wifi and IR comucation, control AC Fan by Triac… - Smart Home Product: Design Home Gateway with Ethernet, WiFi, Zigbee and TFT LCD, ... Design Smart Switch with capacitive touch, Zigbee communication, Single Phase Power Meter, 220VAC/110VAC load control, ... ... and a lot of other products . I hope to work with you, to help you complete your project and release your product to the market
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Microcontroller Design
    Electronic Circuit Design
    Simulation Game
    Test Case Design
    Amplifiers & Filters
    Schematic
    PCB Design
    Internet of Things Solutions Design
    Hardware Design
    Altium Designer
    Antenna Design
    WiFi
  • $100 hourly

    • 4.8/5
    • (22 jobs)
    Hello, I have a Master's Degree in Electrical Engineering and 18 yrs experience working as a hands-on Electrical Engineer. I've worked on all aspects of electronics design: refining initial concepts, part search, SCH and PCB generation, testing, project management, customer relations, and more. I have worked on projects big and small, simple to incredibly complex. Most of my career has been working on dense embedded systems, including military radars and radar jammers. Don't hesitate to reach out to me. I'm interested to hear what you are working on.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Firmware Programming
    Arduino
    Eagle
    Hardware Design
    Hardware Prototyping
    Embedded System
    Embedded C
    Python
    Systems Modeling
    Analog Circuit
    Circuit Design
    Systems Engineering
    PCB Design
  • $35 hourly

    • 4.9/5
    • (7 jobs)
    Skilled RF engineer with over 7 years of experience in designing, testing, and troubleshooting RF & Antennas systems. - Designed passive Radar System -PET Locator - Designed RF circuits and systems for various applications using simulation tools like ADS, and CST. - Designed and optimized antennas for various applications including S-Band Systems, L-Band Systems, LoRa Module on 915 MHz, 2.4 GHz wireless Systems - Designed and tested PCB layouts for RF circuits and systems. - Debugged RF issues in lab and field environments and provided solutions to improve performance. - Collaborated with cross-functional teams including hardware engineers, software engineers, and product managers to deliver high-quality products on schedule. - Conducted feasibility studies, simulations, and prototype testing to validate new product concepts. - Developed test plans and procedures to ensure products meet performance and regulatory requirements. - Provided technical support to customers and resolved product-related issues. Skills : - RF System Design - Antenna Design - PCB Design : High Speed PCB Design, RF PCB Design - RF Debugging : VNA, Spectrum Analyzer, Oscilloscope - Simulation Tools : Matlab, ADS, CST - Design Tools : Altium - Wireless Communication Systems : LoRa Systems, WIFI systems, Telemetry Systems, Radar Systems, GPS/GNSS - Cross-functional Collaboration - Test Plan Development - Technical Support Delivered Products : - Power Divider/Combiner : L-Band, S-Band - S-Band Receiver Channel : that consist of : LNA, BPF, Digital Step Attenuator, power detector, High Power Limiter - L- Band Receiver Channel : that consist of : LNA, BPF, Mixer, Log Amp - Patch Antenna Design : Conformal antenna, 2x2 antenna on freq 8 GHz, - Dipole Antenna Design : 3 GHz Antenna Design. - Waveguide Antenna Design - and various design that meet client needs Sometimes do Consultation for RF Circuit, Antennas, RF Things
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Antenna Testing
    Circuit Design
    Analog Electronics
    C
    Xilinx
    Verilog
    Electronic Design
    RF Microwave Design
    Antenna Measurement
    Altium Designer
    Multilayer PCB
    Antenna Design
    FPGA
    PCB Design
  • $75 hourly

    • 5.0/5
    • (10 jobs)
    EXPERIENCE: - 30+ years of experience in Hardware Electronics R&D activity (RF, IoT, power, communication, etc.) - 30+ years of experience in satellite reception industry (STBs, PVRs, LNBs, MSWs, etc.) - 5 years of experience in development of High Reliability HW electronics analog and digital (automotive, medical, military, aerospace, etc.) - IPC CID certificate - high expertise in analog electronics design (LTSpice simulation) - high expertise in DRO, PLL, SCR, dCSS LNBs for satellite reception - high expertise of the digital TV standards: DVB, ETSI, MPEG, Nordig, DiSEqC, RED, LVD, etc., - experience in electronic measurement devices (Network Analyzer, Spectrum Analyzer, RF Signal Generator, Digital Oscilloscope, NF and Gain Meter, etc.) high expertise in satellite, terrestrial and cable transmission and systems for digital TV, - high expertise in overall radioelectronic systems (short, medium range) and antennas, - participation in development of the standard EN50494 and EN50607 (ETSI, Brussels) EMBEDDED SYSTEMS: - experience in various electronic systems (analog TV broadcast, protection radio systems, low power radio data transmission, controlling of semiconductor lasers, HDD access, USB data transmission, file systems, - experience in RF systems: Bluetooth, TDMA, FDMA, GPS, IoT, Z-Wave, ZigBee, etc. - experience in programming (assembler, C, C++) of wide range of 8-, 16- and 32-bits microcontrollers (PIC of Microchip, ’51 family, HC11, 68000, ColdFire of Motorola, ST20 of ST Microelectronics, MxL), - experience in embedded systems development (I2C, UART, SPI, IEEE1394, Flash memory, RAM memory, USB, etc.) - experience in hardware development (digital, analog, analog-digital, high frequency), - experience in PCB design (1-, 2-, 4-layers): Protel99, KiCAD, Altium Designer
    vsuc_fltilesrefresh_TrophyIcon RF Design
    C
    Hardware Prototyping
    Electronic Design
    Digital Electronics
    Electronics
    PCB Design
    KiCad
    Circuit Design
    Electrical Engineering
    Microcontroller Programming
    PIC Programming
    Microcontroller
    Embedded System
  • $95 hourly

    • 5.0/5
    • (3 jobs)
    Custom antenna design and integration with on-site 2D | 3D pattern measurements and radiated efficiency using MVG StarLab. Antennas printed on your PCB; selection of COTS parts or improving device operating range. EM Simulation tools are available. Co-location of multiple antennas & de-correlation. VNAs and spectrum analyzers to 20 GHz. Over 30 year’s RF experience in commercial, medical device, military, and aerospace industries. Skills include: - Wireless (GSM, ISM, WiFi, BT, ZB, LoRa, NFC, RFID) - Custom antenna design, prototypes, and evaluation - Selecting and integrating COTS antennas - Cellular radio devices designed to AT&T, VZ, OTA, CTIA, PTCRB, and SAR requirements - System perspective of wireless performance for reliability and QoS - Navigating FCC, FDA, and international wireless regulations - Design and test for EMI and EMC - Root cause analysis and remedial actions - CAE Experience: CST / ADS / Momentum / Matlab / Spice Strong analytic and problem-solving skills supporting creative thinking allow product tradeoffs evaluated against selection criteria, strengths, and weaknesses resulting in risk-managed solutions.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Antenna Testing
    Antenna Measurement
    GPS
    Antenna Design
    LoRa
    Zigbee
    Bluetooth
    GSM
    WiFi
  • $25 hourly

    • 5.0/5
    • (78 jobs)
    Enthusiast in electronics design. Work since 2010. Can help you with: * New designs. From scratch to the ready device - not a problem. Have "handmade" drawings and want to get their physical embodiment? We only need to discuss the details. Your very first prototype made of Arduino + 17 shields and tons of wires that are disconnecting all the time? Very easy to move it into a single neat board with all the stuff for a peaceful debug and testing process. * Review/optimize/tune existing design. Everything that will be within my competence is doable. * Prepare a design for manufacturing. Both variants are acceptable - for "hobby-style" (manual assembly, detailed and precise drawings, comments/notes for all steps) and for outsourced manufacturing at the assembly house. * Cooperate with engineers from fields related to electronics - mechanical designers + software engineers. Have minimum required experience in both areas and can easily communicate with a team or act as a "coordinating person." Feel free to send a message, even despite my "availability status." Best regards.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Altium Designer
    Electronics
    Raspberry Pi
    Robotics
    Multilayer PCB
    Hardware Design
    Power Electronics
    Microcontroller Design
    Arduino
    PCB Design
    Circuit Design
  • $75 hourly

    • 4.9/5
    • (97 jobs)
    My job is to design functional and tested circuits and PCBs for your application or consult you, so you can do that your self. Just give me requirements for your circuit: the price for bill of materials, deadline and a list of required features. After prototype of device is designed I almost always advise I will order a few sample PCBs for testing. After testing and debugging is completed, I will ship them to you, so you can verify my testing results. This costs a bit extra for you, but you are buying 100% working circuit design which needs no testing. Just take it and use it in your project. If you want to know how a circuit works I can develop complete math model of the circuit. This approach is way more accurate than SPICE simulation and allows you to understand how the circuit operates. I have completed at least one project having fallowing sub circuits: Analog: Low noise, low speed front-ends (from Hz to 100KHz): Photodiode, strain gauge, pressure sensitive resistors, magnetic angle sensors, tensile, thermocouples and other. High order active filters Voltage measurement (uV to kV) Current measurement (pA to tens of A) Resistance measurements (mOhm to Mohm) Frequency measurement (below GHz) Current output Oscillators (Bubba, Pierce, Hartley, phase shift, relaxation, crystal, RC) Integrated RF transmitters/receivers Digital: PCIe USB HDMI I2S SPI High speed parallel interfaces Logic circuits (TTL, CMOS) SOCs Power: DC/DC converters: Buck, Boost, SEPIC, full bridge, Cuk, Linear AC/DC converters (up to 1.8kW) Brushless and brushed motor drivers TEC drivers CAD packages: DipTrace KiCad Altium I have fallowing equipment: 1x Osciloscope RTB2004 4 channel 10 bit 300MHz with logic analyzer having 16 differential channels up to 600Mbps. 1x Oscilloscope HMO1002 2 channel 8 bit 50MHz. 1x Multimeter HMC8012 5,75digit 1x Electronic load IT8616 1.8kVA 420VAC 20AC (60A peak) or 600VDC 20ADC with AC signal analysis 1x Electronic load IT8512C 120VDC 60ADC 1x Signal generator Rohde and Schwarz AFG 20MHz 1x TP3020 30V 20A linear power supply 1x HY5003-2 dual channel 50V 3A linear power supply 2x PeakTech 6080A 15V 3A power supply 1x VP-2000VA - 2kVA 230VAC to 120VAC converter. 1x DER-EE DE-5000 RLC meter I also have programmer for: Texas Instruments CC series, Texas Instruments MSP430 programmer, Microchip ICD3/PicKit2/AVR ISP USBasp, Segger ARM programmer, SiliconLabs 8051 core programmer
    vsuc_fltilesrefresh_TrophyIcon RF Design
    C
    Amplifiers & Filters
    Power Electronics
    PCB Design
    KiCad
    Microcontroller Design
    Altium Designer
    Analog Electronics
    Microcontroller Programming
    Electronic Circuit Design
    Automotive Engineering
    Circuit Design
    Assembly Language
    Digital Electronics
  • $40 hourly

    • 5.0/5
    • (7 jobs)
    I am a RF and Antenna design engineer with more than 15 years of experience in modelling, simulating, packaging, and testing of the antenna systems. I was awarded my Ph.D. by Swansea University and my thesis focuses on the next generation reconfigurable antenna system for a modern portable 5G transceivers and IoT. I have published more than 20 journal papers and 30 conference papers. I have experiences in the following categories Antenna design: 1. Pattern reconfigurable and beam steering antennas 2. Wearable antennas 3. Bluetooth and Wi-Fi antennas 4. Antenna arrays and their feeding network 5. Wideband and multiband antennas 6. Frequency Selective Surface (FSS) and Electronic Band Gap (EBG) structures. 7. GPS and GNSS antennas 8. Dielectric resonator antennas 9. PIFA antennas and their integration in the device 10. 5G network planning 11. Circuit design 12. Technical writing 13. RFID antennas 14. Satellite receiver antenna Simulation Software: 1. CST Microwave Studio 2. Ansys HFSS 3. FEKO 4. Winprop 5. Antenna Megus 6. Savant 7. Matlab I am attracted to freelancing project because it keeps me updated with the evolution of modern technology. I always charge according to the workload and never charge any project at much higher or lower rates. I always try to complete the project to the best of my ability and provide a good quality work within the deadline for a reasonable price.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Engineering Simulation
    Antenna Measurement
    ANSYS
    RF Microwave Design
    FEKO
    Antenna Design
    RFID
  • $40 hourly

    • 5.0/5
    • (4 jobs)
    - An accomplished RF and microwave Design Engineer with 10+ years of high-frequency sensing system experience with focus on Phased Array Systems and Technology - Experience in the design, development and Integrated testing of a wide spectrum RF and microwave modules from 1 MHz to 10 GHz -Solid State Power Amplifiers (Pulsed/CW), Transceivers, Low Noise Amplifiers , Digital phase-shifters/attenuators -Impedance matching, microwave filter, circulators/isolators, directional coupler, high-power divider/combiner. -Comprehensive performance evaluation of IWR1642 and IWR1443 Single-Chip 76-to-81GHz mmWave Sensor Integrating DSP and MCU Automotive Radar Evaluation Module with ADC data capture in DCA1000EVM with MATLAB processing -Analog electronics , DC power management boards design, prototyping and troubleshooting -Experience with RF measurement instruments including spectrum analyzers, Signal Generators and Vector Network Analyzer (VNA) -2D RF/EM Analysis: Keysight Advanced Design System (Momentum, RF Pro, EMPro), Keysight Genesys -RF link budgeting : Keysight systemVue -3D Modelling and High Frequency Simulations : HFSS, CST microwave studio -PCB Design : Altium Designer/KiCAD/LTSpice -MCUs : ESP32/TMS320F/PIC16F/PIC18F/Arduino etc -MATLAB coding and simulations -Technical writing : Overleaf, Online LaTeX Editor -Video Editing : MAGIX Vegas Pro
    vsuc_fltilesrefresh_TrophyIcon RF Design
    RADAR Construction Management RADAR
    LaTeX
    Amplifiers & Filters
    Engineering Simulation
    Electronic Circuit Design
    KiCad
    MATLAB
    Electronic Design
    PCB Design
    Altium Designer
    RF Microwave Design
    Electromagnetic Simulation Software
  • $45 hourly

    • 5.0/5
    • (120 jobs)
    Hi, my name is Dmytro. I have over a decade of experience designing electronic products related to analog, digital, embedded MCU and firmware, power supplies and more. I accurately quote and finish projects, following through with promised contracts. Focused on PCB Design/Layout and component selection. Also on the preparation of a PCB for production. My skills: - Altium Designer - Developing electronic circuit diagrams - Developing printed circuit boards ( PCB ) - Programming microcontrollers ARM STM32 - Developing devices for GPS navigation If you have any questions please send me a note, thank you.
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Microcontroller Design
    Design for Manufacturing
    PCB Design
    ARM Microcontroller
    Arduino
    ESP32
    Multilayer PCB
    Altium Designer
    Electrical Engineering
    Digital Electronics
  • $50 hourly

    • 4.8/5
    • (71 jobs)
    Hi, I'm a very experienced hardware design engineer with 12+ years of experience in Electronics Design. I have an expertise knowledge on follwoing fileds: - SCH/PCB designs - EMC consultancy - SCH/PCB designs review - EMC review - Board Bringups, testing and debugging - High-speed Electronic Design - Analog-Mixed Signal and RF Designs
    vsuc_fltilesrefresh_TrophyIcon RF Design
    Internet of Things Solutions Design
    Microcontroller Design
    Hardware Troubleshooting
    Multilayer PCB
    Circuit Design
    Digital Electronics
    PCB Design
    OrCAD
    Altium Designer
    CAD
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