Pasternack Blog

Circulators/isolators and switches are both commonly used in the RF front-end of communication and radar systems. The purpose of circulators/isolators and switches in RF front-ends is to enable the use of transmission and reception from the same antenna, duplexing. For instance, in a transmit/receive module (TRM) for an active antenna system (AAS) (phased array antenna), ..

RF circulators are three port devices designed to provide isolation between transmit and receive signals for radar, actively electronically steered antenna (AESA) arrays, satellite communications, and telecommunications applications. An isolator is a modified circulator with one port terminated with a matched impedance. Circulators and isolators are typically used to protect sensitive receiver circuitry from high ..