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I am Dr. Muhammad Ayaz, a PhD in Electrical Engineering, IEEE Professional Member, and Top-Rated Plus freelancer with 10+ years of experience in RF, microwave, antenna, and PCB design. I specialize in designing high-performance antenna systems, RF/microwave circuits, and advanced PCB layouts for modern wireless and communication applications. I help clients transform concepts into manufacturable and prototype-ready hardware using advanced electromagnetic simulation, RF optimization, and high-speed PCB design techniques. ⭐ Core Expertise ✅ Antenna Design & Optimization 🔹 Microstrip patch, monopole, dipole, slot & PIFA antennas 🔹 Helical, horn, dielectric resonator (DRA) & reflector antennas 🔹 Vivaldi, Yagi-Uda, loop & fractal antennas 🔹 Single-element and antenna array designs 🔹 Linear, circular, phased & beamforming arrays 🔹 MIMO, dual-polarized & compact antennas 🔹 5G/6G, mmWave, UWB & wideband antennas 🔹 Planar, conformal & wearable antenna structures 🔹 Gain, bandwidth & impedance matching optimization 🔹 RF performance enhancement and antenna miniaturization ✅ RF & Microwave Engineering 🔹 RF front-end and microwave circuit design 🔹 Filters, couplers, power dividers & matching networks 🔹 RF system integration & optimization 🔹 Signal integrity and RF performance analysis 🔹 Microwave passive component design ✅ PCB Design & Fabrication 🔹 RF & high-speed PCB layout (1–10 layers) 🔹 Controlled impedance routing 🔹 EMI/EMC-aware PCB design 🔹 Compact and manufacturable PCB layouts 🔹 PCB fabrication support and prototype development 🔹 Altium Designer, KiCad & OrCAD PCB development ✅ Simulation & Engineering Tools 🔹 CST Microwave Studio Suite 🔹 HFSS (High Frequency Structure Simulator) 🔹 ADS (Advanced Design System) 🔹 AWR Microwave Office 🔹 Altium Designer, KiCad & OrCAD 🔹 MATLAB, LTSpice, PSpice & Multisim ✅ Antenna Testing & Validation 🔹 Fully calibrated anechoic chamber facility 🔹 Vector Network Analyzer (VNA) based RF measurements 🔹 Antenna testing and performance validation 🔹 S-parameters (S11), VSWR & radiation pattern measurements 🔹 RF tuning, debugging & optimization 🔹 Prototype bring-up and hardware verification ⭐ Why Clients Choose Me? 🔹 PhD specialist in RF, microwave, antenna & PCB systems 🔹 Strong research and industry experience 🔹 Proven success as a TOP-RATED PLUS freelancer 🔹 Real hardware prototyping and testing capabilities 🔹 Focus on performance, reliability & manufacturability 🔹 Professional communication and on-time delivery 🔹 End-to-end support from concept to prototype and testing ⭐ Project Types 🔹 Antenna design & optimization 🔹 RF/microwave circuits & systems 🔹 Antenna arrays & beamforming systems 🔹 RF PCB layout & high-speed PCB design 🔹 PCB fabrication and prototype support 🔹 Antenna measurement & RF testing 🔹 Integrated RF + PCB solutions If you need a senior engineer in RF, microwave, antenna, and PCB design who understands both theory and real-world implementation, including fabrication and testing support, let’s discuss your project. ⭐ Budget & Ordering Available for both fixed-price and hourly projects ($50/hour). Contact me today to discuss your project requirements. Best Regards, Dr. Muhammad Ayaz PhD | Senior RF, Microwave, Antenna & PCB Design Engineer

A top performing hardware design specialist with expertise in PCB layout and IOT solutions. Developed advanced multi-layer PCBs for consumer electronics . Architected reliable proof-of-concept prototypes, ensuring energy efficiency and compliance with industry standards. Skilled in Altium, KiCad, and embedded systems design, leveraging these technologies to deliver high-quality, manufacturable hardware solutions. Experience in ----------------- Hardware Design ----------------- ✔ Schematic and Multi-Layer Printed Circuit Board Design, Part Selection, & Parts sourcing ✔ Generation of manufacturing files, Bill of material management, Design Documentation ✔ Multi-layer boards with buried & blind holes ✔ Micro-controller and FPGA based embedded hardware design ✔ Analog Audio, Digital and Mixed circuit Design ✔ Arduino and STM32 Based Firmware design ✔ Board-level Testing, Debugging, Test Reports, Test Plans. ✔ Impedance controlled PCB design , PCB miniaturization, Cost Reduction ✔ IPC Standard Footprint and Layout design. ✔ EMC and CE&EU Certification design ✔ Microprocessor / Microcontrollers: 8051, 8086, ATMEGA, AVR, ATSAM3X8E,STM32,PIC ✔ Microcontrollers Platforms: Arduino Uno, Arduino Nano, Arduino Due, Arduino Pro Micro STM32 Nucleo board. ESP8266, ESP32, NodeMCU, Raspberry Pi ✔ Coding Languages: C/C++ ✔ Coding IDE: keil uvision, Eclipse IDE, Arduino IDE, Avr Studio. ✔ Audio, RF Module, PA, LCD, Filter, RFID ✔ DDR1~4, Flash, DSP, FPGA, Microchip ✔ GPS, Bluetooth, WiFi, ZigBee, LoraWan, RF 433, GSM, LTE ------------------------------------- Design of BLE based products ------------------------------------- 1. Nordic Semiconductor (nRF52840, nRF52832, nRF51822, nRF52811, nRF52810, nRF52833, nRF5340, nRF52805) 2. Dialog Semiconductor ( DA14683, DA14585) 3. Texas Instruments ( TI CC2541, TI CC2650) 4. STMicroelectronics ( BlueNRG-2N) 5. Silabs (EFR32BG13, EFR32BG22) 6. NXP Semiconductors (QN908x) 7. Qualcomm (CSR102x)

I work on mechanical products that need more than just a CAD model — mechanisms that have to move correctly, parts that need to be manufactured, assemblies that have to fit together, and prototypes that need to work in the real world. My work covers mechanical product design from early concepts and sketches through detailed 3D CAD, assemblies, prototypes and manufacturing-ready drawings. I primarily work with SolidWorks, Fusion 360 and Onshape for 3D CAD, AutoCAD for 2D work, and KeyShot when product visualization is required. Some of the work I can help with includes: • Mechanical product development • Parts, assemblies and mechanisms • CAD development from sketches, references or existing designs • Design for CNC machining, laser cutting, sheet metal and 3D printing • Manufacturing and fabrication drawings • Design for Manufacturing (DFM) • Prototype development and design iteration • Reverse engineering and CAD modification • Product enclosures and integrated mechanical/electronic assemblies • Product rendering and visualization My previous engineering work includes CNC machinery, robotic systems, automated equipment, actuator-driven assemblies, fabricated structures and product-development projects. I also have experience leading multidisciplinary engineering teams, so I am comfortable working through the practical issues that appear when mechanical design has to integrate with electronics, actuators, sensors, controls or other parts of a complete product. If you already have a sketch, reference product, STEP file, existing prototype or an early idea, feel free to send it over. I’m happy to look at the actual engineering problem first and discuss the best way to approach it.

Freelancer in the Top Rating | 99% Job Success with Client Satisfaction Mechanical/Design Engineer-Master has 14+ years of experience in- 2D/3D CAD, Product Design, Development, and Manufacturing. Preparing parts for 3D Printing, Molds, & Sheet Metal processing. Product Presentation, 3D Rendering, and Animation. I have assisted start-ups to become industry leaders with leading design, precision engineering, and manufacturing solutions. Professionalism, technical expertise and excellent communication result in the best results delivered before the deadline. Services Provided CAD Solutions Product and Mechanical Design Design and Drafting for Sheet Metal, Injection Molding, 3D Printing, etc. Machine and Robotics Design Reverse Engineering Rendering and Drafting Prototyping Electronics and Hardware Design Software Skills SolidWorks (Mechanism Design, Plastics, Mold Tools, Dynamics)| Fusion 360 | Advance Steel | AutoCAD Feel free to message me—let’s build something great!

Need accurate and professional AutoCAD drawings for your project? I can help you convert your ideas, sketches, PDFs, or existing drawings into clean, organized, and client-ready CAD files. I am a Field Engineer with 12+ years of experience in network infrastructure projects, technical documentation, and AutoCAD drafting. I specialize in preparing clear 2D drawings for residential, commercial, and low-voltage projects while ensuring accuracy and attention to detail. My services include: • AutoCAD 2D Drafting and Drawing Revisions • PDF, Image or Sketch to AutoCAD (DWG) • Floor Plans and Site Plans • Network Layouts (LAN, Fiber Optic, Wi-Fi & CCTV) • Cable Tray and Data/Voice Outlet Layouts • CCTV Camera Placement Layouts • As-Built Drawings • Layer Management, Dimensions and Plotting • Network Documentation and BOQ Preparation • PDF Conversion, Microsoft Excel and Technical Documentation Throughout my career, I have worked on network infrastructure projects involving fiber optic networks, structured cabling, CCTV systems, and technical drawings. This practical field experience helps me produce drawings that are accurate, easy to understand, and ready for implementation. I believe in clear communication, on-time delivery, and high-quality work. Whether you need a simple floor plan updated, a PDF converted into an editable DWG file, or a professional network layout, I am committed to delivering reliable results. Let's discuss your project and create accurate AutoCAD drawings that meet your requirements.

I help clients turn physical parts, STL meshes, scans, sketches, photos, and existing products into clean, editable, manufacturing-ready CAD. My focus is not just converting geometry — I reconstruct accurate models that are practical for fabrication, 3D printing, assembly, and real-world use. I specialize in reverse engineering, scan-to-CAD, mechanical product design, CAD conversion, and technical drawings. Whether you need a single component, a modified part, or a complete assembly, I work with SolidWorks, Fusion 360, AutoCAD, Rhino, Onshape, and SketchUp to deliver precise files that fit your project goals. I can help with: • Reverse engineering from physical parts or STL/mesh files • Clean parametric CAD models • Mechanical components and assemblies • Sheet metal parts and design modifications • 2D engineering drawings and DXF/DWG files • 3D-print-ready and manufacturing-ready deliverables My deliverables can include STEP, STL, SLDPRT, SLDASM, F3D, DXF, DWG, exploded views, and production drawings. If you have a part, scan, sketch, or concept that needs to become accurate CAD, send it over and I’ll help turn it into a model ready for the next stage of development.