Ahsan A.

RF & Microwave Engineer | RF Design, Calibration & Automated Testing RF & Microwave Engineer with strong hands-on experience spanning RF design, electromagnetic simulation, and calibration-grade RF testing of high-frequency systems. I specialize in bridging theory, simulation, and real-world measurements to deliver accurate, repeatable, and production-ready RF solutions. 🔹 RF Design & Simulation Electromagnetic design and optimization of RF cavities, waveguides, coupling structures, antennas, and passive RF components S-parameter–driven design validation using CST Microwave Studio, HFSS, and Keysight ADS Mode analysis, impedance matching, coupling control, and EM-to-measurement correlation 🔹 RF Testing & Calibration End-to-end RF verification and calibration of signal generators, spectrum analyzers, VNAs, and power sensors Measurements covering output power accuracy, phase noise, harmonics & spurs, TOI, VSWR, frequency & level settling time Digital modulation analysis including QAM/QPSK, EVM, ACLR, and spectral regrowth 🔹 Test Automation & Productivity Automation of RF measurements using Python/SCPI, HP/Agilent/Keysight VEE Pro, and NI LabVIEW Development of repeatable test frameworks reducing manual test time by 50–70% Clean, documented workflows suitable for R&D validation, production testing, and calibration environments I can support projects from RF design and simulation through lab testing, calibration, and automated verification, ensuring your RF system meets performance, accuracy, and compliance requirements.