Hire the Best RF Design Freelancers
in Pakistan

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

I am a professional PCB Design Engineer with 6+ years of experience delivering production-ready hardware designs for commercial and industrial applications. I work on a wide range of PCB projects — from simple boards to complex multi-layer systems — with a strong focus on reliability, manufacturability, and performance. In addition to general PCB design, I have solid experience in Industrial IoT systems, including LTE/NB-IoT devices, RS485/CAN Bus communication, Battery Management Systems, RF Designs and low-power sensor nodes. 🔧 What I Can Help You With: Schematic & PCB design (2-layer to multi-layer) HDI Design as per Design Complexity and space contraints Hardware development from concept to production BOM creation & cost optimization (JLCPCB/LCSC ready) PCB redesign, debugging & performance improvement Prototyping & manufacturing support ⚡ Advanced Experience In: ESP32, STM32, Nordic (nRF52 series) LTE / NB-IoT (Quectel, Sequans, Ubox) RS485 / Modbus, CAN Bus communication Low-power design (battery & solar-based systems) Power supply design (buck/boost, LDOs) RF-aware layout & antenna considerations Track Record: Top Rated Plus Freelancer (Top 3% on Upwork) 100% Job Success Score 120+ completed projects 98% 5-star reviews $100K+ total earnings Tools I Use: Altium Designer EasyEDA (Standard & Pro) KiCad What You Can Expect: Clean, well-documented schematics Industry-standard PCB layout practices Design aligned with manufacturing requirements Clear communication and reliable delivery If you have an idea, existing design, or need improvements in your hardware, feel free to reach out I’ll be happy to discuss your project.

I have designed 30+ real-world components used in defence systems, DC fans, and kitchen appliances handling everything from design and simulation to fabrication and testing myself, so you get complete, working hardware solutions from one expert. I am an RF, PCB, and Embedded Systems Engineer with strong hands-on experience in building complete hardware products. I have worked on real-world RF systems including high-power amplifiers, transmitter-receiver designs, RF filters, and antenna systems for communication and defence-related applications. I specialize in RF design, antenna design and testing, wireless communication, and high-quality PCB design including multilayer boards using Altium Designer and KiCad. I also work on circuit design, analog electronics, RF filters and amplifiers, and embedded systems using STM32, ESP32, and Arduino. I have successfully delivered reliable, tested, and production-ready designs that perform well in real-world conditions. For large and challenging projects, I collaborate with a trusted team of highly skilled professionals, so we can deliver a complete, fully working product including hardware, software, and mechanical design all in one place. ✅ RF & Microwave Circuit Design ✅ RF System Design (Transmitter & Receiver) ✅ RF Front-End Design ✅ RF Power Amplifier Design (Low, Medium & High Power) ✅ LNA (Low Noise Amplifier) Design ✅ RF Filters Design (Bandpass, Low-pass, High-pass) ✅ Impedance Matching & RF Tuning ✅ Antenna Design (Patch, Monopole, Dipole, Custom) ✅ Antenna Simulation & Optimization ✅ Antenna Testing & Performance Measurement ✅ Wireless Communication System Design ✅ RF Signal Chain Development ✅ Frequency Planning & Spectrum Analysis ✅ PCB Design (Single Layer, Double Layer, Multilayer) ✅ High-Speed PCB Design ✅ RF PCB Layout & Controlled Impedance Design ✅ Schematic Design & Circuit Layout ✅ PCB Design using Altium Designer, KiCad & EasyEDA ✅ Gerber File Generation & Manufacturing Support ✅ Design for Manufacturing (DFM) & Assembly (DFA) ✅ PCB Debugging & Optimization ✅ Electronic Circuit Design ✅ Analog Circuit Design ✅ Amplifiers & Signal Conditioning Circuits ✅ Sensor Interface Circuit Design ✅ Power Electronics Circuit Design ✅ Hardware Troubleshooting & Debugging ✅ Embedded Systems Design ✅ Embedded Hardware Development ✅ Microcontroller-Based System Design ✅ Microcontroller Programming (STM32, ESP32, Arduino, AVR) ✅ Embedded C & C++ Development ✅ Firmware Development ✅ IoT Device Development (WiFi, LoRa, ESP32) ✅ Raspberry Pi-Based Projects ✅ FPGA Design & Development ✅ Verilog / VHDL Based Design ✅ Digital System Design on FPGA ✅ Simulation & Timing Analysis ✅ FPGA Prototyping & Testing ✅ Electromagnetic Simulation (HFSS, CST, ADS) ✅ Circuit Simulation (LTspice, PSPICE, MATLAB) ✅ EM & RF Co-Simulation ✅ Signal Integrity & EMI/EMC Analysis ✅ Hardware Prototyping ✅ Product Development from Concept to Prototype ✅ Functional Testing & Validation ✅ Performance Measurement & Optimization ✅ Test Results Analysis & Reporting ✅ Technical Writing (Engineering Reports & Documentation) ✅ Research Paper Writing (IEEE Format) ✅ Project Documentation & Reports ✅ RF & Electronics Content Writing ✅ Complete Product Design (Hardware + Embedded + RF + FPGA) ✅ Prototype to Production Support ✅ Real-World Testing & Field Validation ✅ Engineering Simulation & Optimization

As a Top-rated Upwork freelancer and experienced Hardware Engineer, I thrive on designing and developing complete electronic systems that solve real-world engineering challenges. My work blends deep technical expertise in PCB design, RF engineering, and embedded systems with a strong focus on building production-ready, reliable, and scalable hardware products. Over the years, I’ve worked across the full hardware development cycle — from concept, schematic design, and PCB layout to firmware development, prototyping, RF optimization, and manufacturing support. I enjoy turning complex ideas into functional, manufacturable electronic systems that perform reliably in real environments. Here's a snapshot of the domains I've mastered: Hardware Specialties 💻🔌 ✅ Embedded Systems Development: Expert in designing embedded solutions using ESP32, STM32, PIC, Arduino, and Raspberry Pi (including CM4/CM5 platforms). I handle everything from low-level firmware (C/C++) to hardware integration, real-time control systems, and IoT-enabled devices. ✅ PCB Design & Hardware Engineering: Advanced experience in schematic design, multilayer PCB layout (2–16 layers), high-speed routing, power distribution, signal integrity, and EMI/EMC-aware design. I focus on turning circuits into robust, production-ready boards. ✅ RF & Microwave Engineering: Specialized in RF circuit design, antenna development, and electromagnetic simulation using CST, HFSS, ADS, and 4NEC2. My work includes LoRa, GPS, RFID, wireless communication systems, and RF optimization for real-world performance. ✅ Wireless & IoT Systems: Designing connected systems using Bluetooth, WiFi, LoRa, and custom RF protocols. I develop IoT devices for automation, monitoring, sensing, and smart control applications. ✅ Sensor & Embedded Integration: Experience with MEMS/IMU, GPS modules, RFID systems, displays, motor drivers, and industrial sensors for data acquisition and intelligent control systems. Design Tools 🧰 Altium Designer | KiCad | EasyEDA | CST Studio Suite | HFSS | ADS | MATLAB & Simulink | LTspice | NI Multisim | Proteus | 4NEC2 Project Experience 🚀 ✔ Raspberry Pi CM4/CM5 Carrier Board Development ✔ High-speed Multilayer PCB Design for complex systems ✔ ESP32, STM32 & Arduino-based embedded products ✔ RF & Antenna Design for LoRa, GPS, and RFID systems ✔ IoT & Wireless Communication Devices ✔ Motor Control & Automation Systems ✔ Power Electronics & DC-DC Converter Designs ✔ Custom Sensor-based Data Acquisition Systems ✔ Smart Home & Industrial Automation Solutions ✔ Prototype development to manufacturing-ready hardware My approach is centered around engineering precision, manufacturability, and system-level reliability. Whether it’s a small embedded controller or a complex RF-enabled multi-layer system, I ensure every design is optimized for performance, stability, and real-world deployment. I also support full product development — from initial architecture and schematic design to firmware, debugging, testing, and production assistance. I’m always excited to collaborate on innovative hardware ideas and help transform concepts into fully functional electronic products ready for manufacturing and deployment. Tags: Electrical Engineer, Electronics, Hardware Design, PCB Design, PCB Layout, RF Engineering, Antenna Design, Embedded Systems, Firmware Development, ESP32, STM32, Arduino, Raspberry Pi, IoT, Signal Integrity, EMC Design, High-Speed PCB, LoRa, GPS, RFID, Microwave Engineering, Altium Designer, KiCad, CST, HFSS, ADS, Power Electronics, Automation Systems, C, C++, Embedded C, RTOS, Wireless Communication, Prototyping, Manufacturing Support. Warm Regards, Muhammad Waleed

If you have a new antenna design that needs to perform in a challenging RF environment, requires optimization to meet specifications, or presents complex RF issues, I can help. With extensive experience in antenna and RF design, along with advanced expertise in electromagnetic simulation software, I specialize in designing, modeling, and testing antenna systems from concept to final product. Over the years, I have worked on a diverse range of RF applications, from 5G/6G communications, phased arrays, and satellite systems to medical antennas, IoT, and autonomous vehicle antennas. My expertise includes: ✔ High-performance antenna arrays – Phased arrays, MIMO, beamforming, and RIS antennas. ✔ 5G & 6G Wireless Systems – mmWave, sub-6 GHz, and reconfigurable antennas. ✔ Medical & Wearable Antennas – On-body sensors, implantable, and microwave imaging antennas. ✔ Satellite & Aerospace Applications – High-gain reflectors, waveguides, and ground stations. ✔ Electromagnetic Simulations & Analysis – CST Microwave Studio, HFSS, ADS, and AWR MW Office. ✔ RF & Microwave Circuit Design – Power dividers, couplers, filters, and matching networks. ✔ PCB & Prototyping – Multi-layer RF PCB design and fabrication. ✔ RFID & IoT Solutions – UHF, HF, LF RFID antennas, and reader integration. ✔ Circular & Dual-Polarized Antennas – For improved signal stability, coverage, and multipath mitigation.

With over 13 years of experience in PCB designing, hardware development, and component sourcing, I have successfully designed and implemented a wide range of projects. My expertise spans various domains, including FPGA-based systems, BLE (Bluetooth Low Energy), IoT (Internet of Things), NB-IoT (Narrowband Internet of Things), and power supply circuits. Key Highlights: - **PCB Design**: Proficient in creating intricate PCB layouts, including high-speed, differential pairs, and RF track and antenna routing. - **Layer Stack-Up**: Accomplished designs with up to 16 layers, ensuring optimal signal integrity and performance. - **EDA Tools**: Adept at using industry-standard EDA tools, including: - **Altium Designer**: Leveraging Altium's comprehensive suite for schematic capture, PCB layout, and 3D visualization. - **Autodesk Eagle and Eagle 360**: Familiar with Eagle's user-friendly interface and cloud-based collaboration features. - **Mentor Pads9.5 and Mentor Graphics PADS Pro VX.2.10**: Experienced in constraint-driven design and signal integrity analysis. - **Orcad Allegro 17.2**: Proficient in complex PCB designs using Cadence's powerful toolset. - **KiCad**: Skilled in open-source PCB design with KiCad, benefiting from its community-driven development. - **PCBweb, EasyEDA & Fritzing**: Versatile in using online platforms for various design requirements. - **MCUs and Processors**: Proficient with various microcontrollers (MCUs) and processors, including: - STM32 family (e.g., STM32F4, STM32H7) - Atmega series (e.g., Atmega328P) - PIC microcontrollers (e.g., PIC16, PIC18) - ARM Cortex-M series (e.g., Cortex-M0, Cortex-M4) - ESP8266 and ESP32 - Raspberry Pi (ARM-based) - Intel x86 processors (e.g., Core i7, Xeon) - AMD Ryzen processors - **FPGA Expertise**: Versed in designing for various FPGA families, tailoring solutions to project-specific requirements. - **Bluetooth Low Energy (BLE)**: A wireless, low-power communication standard for IoT devices. - **Global Navigation Satellite System (GNSS)**: Satellite-based positioning systems (e.g., GPS, Galileo) for location tracking. - **Narrowband IoT (NB-IoT)**: Cellular technology designed for low-power, wide-area IoT applications. - **Quality of Service (QoS)**: Ensuring reliable and predictable performance in IoT networks. PER hour rate for 2 Layer PCB=$10 PER hour rate for 4 Layer PCB =$20 PER hour rate for 6 Layers PCB=$25