What device is utilized for managing multiple antennas in communication systems?

The device commonly used for managing multiple antennas in communication systems is a duplexer. A duplexer allows for simultaneous transmission and reception of signals using the same antenna or set of antennas, effectively managing multiple paths of communication. This is particularly important in radio frequency systems, where it segregates the incoming and outgoing signals, enabling efficient use of the antenna system without interference between the two.

In various communication setups, such as those used in mobile networks or radio broadcasts, the duplexer's key role is to filter and direct the signals appropriately, ensuring that the various operating frequencies do not clash. This capability is crucial for ensuring seamless communication and maximizing the performance of the antenna system in diverse applications. As a result, the duplexer is an essential component in systems that require robust management of multiple antennas.