What role does the RADAR duplexer/circulator serve?

The RADAR duplexer or circulator serves the important function of allowing a single antenna to be used for both transmitting and receiving signals. In radar systems, this is essential because it enables the system to send out a transmitted signal and then switch rapidly to receive the reflected signal without requiring two separate antennas. This functionality enhances the efficiency and compactness of the system, as having one antenna simplifies design and reduces costs while maintaining effectiveness in operation.

The duplexer manages the high-power output from the transmitter and ensures that it does not damage the receiver during transmission. By correctly routing signals, it facilitates the seamless transition from sending to receiving, which is critical for effective radar operation.