RF4S LLC
Radio Frequency for Sustainable, Stable, Sensitive and Secure Communications
About RF4S LLC
RF4S LLC was established by electronics and semiconductor professionals with over 35 years of combined industry experience across multiple start-ups and public companies. Our mission is to develop radio-frequency circuits, modules, and systems for wireless communications and radars that deliver stable performance even in contested environments. We are committed to creating solutions that significantly reduce the impact of antenna mismatch and external noise interference—whether from industrial sources or adversarial conditions—resulting in extended operating distances and superior reliability.
Our extensive team brings expertise spanning from low frequencies to millimeter-wave frequencies exceeding 100GHz. We leverage both discrete component design and complete semiconductor integrated circuit (RFIC) development across multiple technologies including CMOS, BiCMOS, GaAs, and GaN. From initial architecture concepts through circuit-level implementation to manufacturing, we provide comprehensive RF design solutions that meet the most demanding requirements for wireless communications and radar systems.
Our Services
RF Circuit Design
Custom design of radio-frequency circuits optimized for stable performance in contested environments. Our expertise spans from low frequencies to millimeter-wave (>100GHz) applications, utilizing both discrete components and integrated circuit approaches.
RF Modules and Systems
Development of complete RF modules and systems for wireless communications and radar applications. We design solutions that minimize antenna mismatch and external noise interference, extending operating distance and improving system reliability.
Semiconductor RFIC Design
Full-spectrum semiconductor integrated circuit (RFIC) design across multiple technologies including CMOS, BiCMOS, GaAs, and GaN. From architecture concept through circuit implementation to manufacturing support, we deliver cutting-edge RF solutions.