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CHENGDU JING XIN MICROWAVE TECHNOLOGY CO., LTD
A duplexer is an electronic device that allows bi-directional (duplex) communication over a single path. In radar and radio communications systems, it isolates the receiver from the transmitter while permitting them to share a common antenna. Most radio repeater systems include a duplexer. Duplexers can be based on frequency (often a Waveguide Filter), polarization (such as an orthomode transducer), or timing (as is typical in radar)