Septum Polarizer를 이용한 다이플렉서 설계

In this paper, the diplexer for satellite ground station is proposed. The proposed diplexer consist of low-pass filter, septum polarizer and high-pass filter(cut-off). To separate Rx and Tx of X-band providing right-hand and left-hand circular polarizations (RHCP and LHCP), the septum polarizer is used. The proposed diplexer is having the shut stub structure and operating in the frequency ranges of 7.25 ～ 7.75 GHz, 7.9 ～ 8.4 GHz and 12.15 ～ 12.3 GHz for the domestic X/Ku-band satellite communication.