Development of a 3 cm band reflected power canceller

This paper describes the principle and design for solving the problem of isolation between transmitter and receiver using a reflected power canceller (RPC) combined with the development of a single antenna for frequency modulated continuous wave (FMCW) radar. Some design problems met in developing the canceller are analyzed and the results are presented By using these analyzed results, a 3 cm band RPC has been developed and its performance reaches the expected design specifications.