Which device serves to isolate the transmitter from the receiver in radar systems?

The duplexer is a critical component in radar systems as it allows the transmitter and receiver to share the same antenna while ensuring they operate effectively without interference. Its primary function is to isolate the transmitter from the receiver during operation. When the radar is transmitting signals, the duplexer directs the transmitted signals away from the receiver, preventing any potential damage from high-power signals. Once the transmission is completed, the duplexer switches the connection so that the receiver can pick up the echoes of signals that bounce back from targets. This isolation and switching capability are essential for the radar system to function correctly, enabling it to transmit and receive signals without conflict.