
1. IntroductionHigh-frequency electronic systems—including 5G base stations, automotive radar modules, aerospace communication payloads, and industrial IoT gateways—demand unprecedented levels of electromagnetic compatibility (EMC) and electromagnet…

1. IntroductionHigh-density electronic systems, especially those operating in the RF and microwave bands (300MHz–30GHz), are increasingly susceptible to electromagnetic interference (EMI) and require strict electromagnetic compatibility (EMC) design …

1. IntroductionHigh-frequency power amplifiers (HFPA) are core components in modern electronic systems, responsible for amplifying weak radio frequency (RF) signals (300MHz–30GHz) to high-power levels for transmission, processing, or driving loads. T…