HFICs
HFICs stands for high-frequency integrated circuits, a class of integrated circuits designed to process signals at RF, microwave, and sometimes millimeter-wave frequencies. HFICs integrate active devices such as transistors with passive components on a single substrate to perform functions like amplification, mixing, frequency conversion, switching, and signal conditioning. The operating frequency range for HFICs can span from a few hundred megahertz up to tens or hundreds of gigahertz, depending on technology and packaging.
Technologies used in HFICs vary by application requirements. Silicon-based approaches, including BiCMOS and SiGe CMOS, are
Applications of HFICs are broad, spanning wireless communications (cellular, Wi‑Fi, satellite links), radar, automotive and industrial