The duplexer in a radar system is primarily used for what purpose?

The duplexer in a radar system serves a critical role by allowing the same antenna to be used for both transmitting and receiving signals. This functionality is essential in radar systems where space and equipment efficiency are paramount. By incorporating a duplexer, the radar can switch between sending out signals and capturing the echoes that return after reflecting off targets, which enhances the system's overall performance and reduces the need for multiple antennas.

Using a single antenna for both operations minimizes hardware complexity and potential interference, which is vital for maintaining clear signal quality and accurate detection. The duplexer effectively manages the timing and separation of these functions, ensuring that the radar can operate efficiently without disruption.