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What Is a Coaxial Switch? Complete Guide for RF Engineers
Release date：2026/7/22
A coaxial switch is a specialized electromechanical device designed to route radio frequency (RF) and microwave signals between multiple transmission paths. These switches are critical components in communication systems, test equipment, and defense applications where reliable signal routing is essential.
A coaxial switch is an RF component that controls the connection between coaxial transmission lines. Unlike standard electrical switches, coaxial switches are engineered to maintain precise impedance matching (typically 50Ω or 75Ω) and minimize signal degradation during switching operations.
These switches use coaxial connectors (such as SMA, N-type, BNC, or TNC) to ensure proper signal transmission at frequencies ranging from DC to over 40 GHz, depending on the switch design.
Website：https://www.dbdesignmw.com/n/news/what-is-a-coaxial-switch-complete-guide-for-rf-engineers