System Architecture, circuit development and board-level hardware design and analysis in the areas of:

Analog, Mixed Signal, Audio, Video
RF, Microwave and Electro-Optical
Telecommunications, Radionavigation, GPS
Spread Spectrum, Pseudorandom Codes
Phase Noise and Jitter Control
Timing, Synchronization, Clock Recovery
Low Noise, High Speed, Broadband
Wireless, Modulation, Demodulation

Author of the book, “Comparators,” published by Springer, ISBN 978-3-030-95741-4, https://link.springer.com/book/10.1007/978-3-030-95742-1