Muhammad A.

I help clients design, optimize, and troubleshoot high-speed PCBs, RF/microwave circuits, and antennas—from simulation and layout to prototype validation. I am Dr. Muhammad Ayaz, a PhD in Electrical Engineering, IEEE Professional Member, and Top Rated freelancer with 10+ years of experience. My recent work includes a completed Wi-Fi 8 board project and multiple mmWave PCB projects. HIGH-SPEED & RF PCB DESIGN • Multilayer PCB design and layout in Altium Designer, KiCad, and OrCAD • Controlled-impedance routing, signal integrity, and EMI/EMC-aware layout • RF front-end integration, compact layouts, and manufacturing preparation • Fabrication support, prototype bring-up, and hardware troubleshooting ANTENNA DESIGN & OPTIMIZATION • Compact antennas, microstrip patches, MIMO systems, and antenna arrays • Phased arrays, beamforming, mmWave, UWB, and wireless applications • Impedance matching, bandwidth and gain optimization, and miniaturization • CST Studio Suite and Ansys HFSS modeling and analysis RF & MICROWAVE CIRCUITS • Filters, couplers, power dividers, matching networks, and RF front ends • RF performance analysis, tuning, debugging, and design reviews • ADS and AWR Microwave Office simulation TESTING & VALIDATION • VNA measurements, S-parameters, VSWR, and radiation patterns • Antenna measurement and anechoic-chamber testing support • Simulation-to-prototype comparison and RF troubleshooting WHAT YOU RECEIVE Depending on the agreed scope, deliverables can include simulation source files, performance plots and reports, schematics, PCB layout files, manufacturing documentation, and measurement results. Fabrication, testing, and prototype requirements are defined before work starts. GETTING STARTED Send your frequency band or interface requirements, target performance, board size constraints, existing files, and required deliverables. We can begin with a consultation or design review to define the technical approach, milestones, and validation plan. Available for hourly and fixed-price projects.