I’m a skilled RF and mmWave hardware engineer specializing in antenna and PCB design, with extensive experience in the automotive and wireless industries. My work spans all stages of development - from early concepts and circuit planning to detailed electromagnetic simulation, prototyping, testing, and validation. I use industry standard tools like CST Studio Suite, Ansys HFSS, Altium Designer, KiCad, Altium, SPICE, and FreeCAD for design, simulation, and mechanical integration — making sure each stage of development connects smoothly from concept to realization. In addition, I maintain a small RF lab equipped with a vector network analyzer, spectrum analyzer, oscilloscope, and all other tools needed for soldering and prototyping, allowing me to test and verify designs hands-on. I enjoy tackling projects that combine simulations and practical hardware work. Whether it’s developing antennas, optimizing RF circuits, designing PCBs, or helping with various electronics projects, I aim to create solutions that work reliably in the real world :)

I started my journey in engineering during my university years, where my fascination with RF began. While others were exploring general electronics, I found myself deeply drawn to RF circuits, RF propagation, and RF system behavior. I spent countless hours in labs studying RF fundamentals, experimenting with RF signal generation, RF matching networks, and RF antenna design. My dream was clear early on, to become an expert in RF engineering and build real-world RF systems that solve complex communication challenges. During university, I focused heavily on RF projects, including RF transceivers, RF filters, and RF PCB design. I developed a strong foundation in RF theory, RF simulation tools, and RF measurement techniques using VNAs and spectrum analyzers. My academic projects revolved around RF optimization, RF impedance matching, and RF layout best practices, which shaped my career direction. After graduation, I transitioned into professional RF design, where I have been consistently working on RF systems, RF PCB layouts, and RF product development. My experience includes RF front-end design, RF antenna integration, RF shielding, and RF performance tuning for wireless systems such as WiFi, BLE, LoRa, and cellular IoT. I have hands-on experience in RF debugging, RF compliance considerations, and RF certification readiness (FCC/CE). My approach to RF design is practical and detail-oriented, ensuring RF signal integrity, minimizing RF losses, and optimizing RF performance in real-world environments. I continuously refine my RF skills through simulation, testing, and iteration, always aiming for high-efficiency RF solutions. Today, my goal remains the same as it was in university: to push the boundaries of RF design, create reliable RF systems, and deliver high-performance RF products that meet both technical and commercial requirements. Thanks for reading my profile.

Hello, thank you for checking out my profile. I'm a Certified LabVIEW and MATLAB Developer with over 5 years of experience in signal processing, FPGA, and Embedded System Design. With a strong set of skills and expertise, I bring proficiency in developing cutting-edge solutions in these domains. My strengths lie in my deep understanding of LabVIEW and MATLAB, allowing me to design and implement efficient algorithms for signal processing tasks. I excel in FPGA programming, leveraging its power to accelerate computations and optimize system performance. Additionally, my expertise extends to embedded systems design, where I have successfully developed robust solutions for various applications. Throughout my career, I have been involved in several notable projects such as Signal Processing of mm-wave Radar for Driver Drowsiness and Child Presence Detection for Vehicle In-Cabin Monitoring System which showcase my ability to deliver high-quality results. I have successfully implemented complex signal processing algorithms, enabling real-time data analysis for critical applications. Furthermore, my experience in FPGA design has led to significant improvements in system speed and efficiency. I hold a strong educational background, having obtained relevant certifications and a degree in Electrical Engineering. This foundation has equipped me with a solid theoretical understanding, which I consistently apply to real-world challenges. In summary, as a Certified LabVIEW and MATLAB Developer, I possess a wealth of experience in signal processing, FPGA, and embedded system design. My proven track record of delivering successful projects, along with my expertise and educational background, make me a valuable asset in tackling complex engineering problems. .

Thank you for visiting my profile. My name is Ta Duy Long, I have extensive experience in electronic hardware and firmware development over 6 years. My expertise and skills: 1. Electronic Schematic and PCB Design - Mastering for vavious design tools such as Altium Designer, Kicad, Eagle and EasyEDA - Qualfied design for complex digital and analog circuits - EMC/EMI compatible PCB design and ceritifications 2. Firmware development for various MCUs and Embedded System - Robust Firmware programming using C, C++, Python - Familar with various Wire/Wireless communication protocols - AI embedded system firmware development 3. Strong problem solving skills and keen eye for technical details - Solving skills for cutting edge technologies - Fixing issues and optimiztion for existing design I always provide the qualified working result and kind support to 100% project success.

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

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.

I am a Senior Electrical Engineer with a Master’s degree and 16 years of experience designing embedded electronic systems from concept through production. My work includes electronics architecture, schematic design, PCB layout, firmware development, server-side system integration, and prototype bring-up for low-volume and production hardware. I have extensive experience with PCB design and manufacturing, including over 10 years using Altium Designer, along with Eagle, KiCad, and other professional tools. My designs account for signal integrity, power integrity, EMC considerations, and manufacturability. I regularly support projects through prototype builds, validation, and transition to contract manufacturing. My technical background includes a wide range of sensors and subsystems such as temperature, humidity, time-of-flight, reflective sensors, load cells, RTDs, pressure sensors, light sensors, smoke detection, IMUs, magnetic sensors, mmWave radar, GPS, and image sensors. I design complete systems that integrate sensing, processing, power management, communications, and backend connectivity. I have developed designs involving bidirectional motor control, piezo mist drivers, servos, heaters, LED drivers, PMICs, battery charging and protection, audio systems with mixing and noise cancellation, RFID and NFC, AC-powered systems, switch-mode power supplies, vision systems, and closed-loop temperature control using PID. My embedded software experience includes bare-metal and RTOS-based development across a wide range of platforms, including PIC, AVR, SAMD and SAMG, STM32, nRF52, EFM32, MSP430, PSoC, LPC, Kinetis, i.MX, Jetson, and Raspberry Pi. I work with Microchip, Atmel, Nordic, ST, Silicon Labs, and Espressif toolchains, as well as FreeRTOS, uC/OS-III, Zephyr, and FPGA-based systems. I have significant experience with IoT system integration beyond the device level. This includes server-side communication protocols for connected products, backend services, databases, and client-facing applications. I have worked with REST APIs, MQTT, WebSockets, TCP/UDP, and custom protocols, using Python and Node.js on the server side, along with SQL and PostgreSQL databases. I have also developed web-based client portals using React and Bootstrap to support device management, data visualization, and system administration. Separately, I use Python extensively as a development and engineering tool. This includes writing scripts and utilities for automation, testing, debugging, manufacturing support, data analysis, and workflow integration during hardware and firmware development. I have designed wireless and connected products using ESP32 and ESP8266, nRF52, u-blox cellular modules, LoRa, Zigbee, and Z-Wave. These systems have been deployed across consumer, industrial, automotive, marine, aviation, and agricultural applications. Industry experience includes RV systems, drones, consumer electronics, industrial equipment, automotive lighting and heating, marine wireless sensor networks, aviation seat and heater controls, and agricultural equipment. I am comfortable working with both startups and established manufacturers and understand the tradeoffs required to move a design from prototype to production. I focus on building reliable, manufacturable systems and communicating clearly throughout the project. If you need an engineer who can own the hardware, firmware, and system integration end to end, I am ready to help.

If you need someone who genuinely understands AI, Machine Learning, and Wireless Communication at a research level — not just surface-level tutorials — you're in the right place. I hold a PhD in Electrical Engineering (NUCES-FAST) with specialization in 5G Wireless Communication and Deep Learning. I am a published IEEE researcher with a journal paper in IEEE Access (Q1) and 4 conference papers. I currently lecture in the Artificial Intelligence department at a top Pakistani university, where I teach 200+ students across Deep Learning, Machine Learning, Computer Networks, and Digital Logic Design. With 9+ years of combined teaching, research, and industry experience, I bring PhD-level depth to every project. ─────────────────────────────────── WHAT I CAN HELP YOU WITH ─────────────────────────────────── 🔬 AI & Machine Learning Deep Learning model design and training, GRU/LSTM/CNN architectures, ONNX model deployment, Reinforcement Learning, Python (TensorFlow, Keras, PyTorch), Scikit-learn, Data Mining 📡 Wireless Communication & Signal Processing 5G NR, OFDM, FBMC, MIMO, mmWave, PAPR reduction, channel estimation, MATLAB Simulink, Digital Signal Processing 🎓 Academic Tutoring & Mentoring Machine Learning, Deep Learning, Digital Logic Design, Computer Architecture, Computer Networking, Electronics, Microcontrollers, Arduino, Robotics, C++ Programming, Mathematics, Physics, Probability 📝 Technical Writing & LaTeX IEEE-standard research papers, thesis formatting, technical reports, journal submission-ready documents 🛠 Engineering Tools MATLAB, Python, LaTeX, AutoCAD, SolidWorks, HFSS, Microsoft Office ─────────────────────────────────── WHY CLIENTS CHOOSE ME ─────────────────────────────────── ✔ 100% Job Success Score — Top Rated freelancer since 2019 ✔ PhD-level expertise with real research publications ✔ Published in IEEE Access (Q1 Journal, Impact Factor 3.9) ✔ Active university lecturer — I explain complex topics clearly ✔ Fast turnaround with clear communication ✔ 30+ completed projects across 6 years on Upwork If you have a project in AI, wireless communication, signal processing, or need expert tutoring and academic support — message me and let's discuss how I can help.

As a Top Rated Plus freelancer on Upwork, I've successfully delivered large-scale data science, engineering and embedded systems projects with 100% client satisfaction I’m a Microsoft Certified Data Scientist and Electrical Engineer with 8+ years of R&D experience in Machine Learning, Data Analytics, and PCB/IoT Design, helping startups and engineering firms build smarter, data-driven products. What I Deliver AI & Data Science Solutions - Machine Learning & Deep Learning model development (NLP, Time Series, Computer Vision, GANs) - End-to-end ML pipelines: data preprocessing → model deployment → API integration - Predictive analytics & dashboards for finance, manufacturing, and IoT systems - Bots for trading (stocks, crypto) with real-time data analysis PCB & IoT System Design - High-efficiency PCB layouts (DC/DC converters, motor drivers, wearable devices, IoT boards) - Firmware development and embedded systems integration - Wireless communication (BLE, LoRa, Wi-Fi) and sensor-based design Technical Writing & Research - Research papers, whitepapers, and technical documentation - AI, data science, and engineering articles written with clarity and authority Why Clients Hire Me - Microsoft Certified and backed by an Electrical Engineering degree - Cross-domain expertise, combining AI, data analytics, and embedded systems - Proven track record in delivering optimized, production-ready ML and engineering solutions - 100% commitment to quality, communication, and on-time delivery, or your money back If you’re building a data-driven product, predictive system, or smart IoT solution, I can help you take it from idea to implementation, efficiently, accurately, and intelligently. Let’s discuss how I can help you bring your next project to life.

Experience: 🔹 I have been specializing in RF & Microwave Antennas for the past 2 years, working on a range of projects that involve designing, simulating, and optimizing antenna systems. Education: 🔹 BTech in Electronics and Communication 🔹 Master's in Communication and Signal Processing Technical Skills: 🔹 Expertise in Software Tools: CST Microwave Studio Suite (3D EM Simulation) Advanced Design System (ADS) High Frequency Structure Simulation (HFSS) AWR Microwave Office Altium Designer MATLAB, Multisim, Proteus Programming in C, Python, and C++ Area Expertise: 🔹 Antennas: Single Element Antennas Array Antennas (including MIMO for 5G/6G) Phased Antenna Arrays mmWave & THz Antennas Wideband Arrays and Dual Polarized Arrays Antennas for Medical Applications Low-Cost Commercial Antennas 🔹 RF Circuits & Components: RF Circuit Design Antenna Matching Circuits Amplifiers and Filters Power Dividers and Feed Networks 🔹 Advanced Topics: Beamforming MIMO and Metamaterial Phased Arrays Array Signal Processing I am committed to leveraging my academic background and hands-on experience to deliver high-quality solutions and tackle complex challenges in the RF and microwave domain.