DUPLEXER FOR SUPER CONDUCTIVITY FILTER SUB-SYSTEM HAVING 3-POLE DIELECTRIC RESONATOR

摘要

PURPOSE: A duplexer for a super conductivity filter sub-system is provided to reduce an insertion loss by using a 3-pole dielectric resonator at an input terminal. CONSTITUTION: A duplexer for a super conductivity filter sub system includes a metal case(11), an antenna connector(12), a receiving connector(14), a transmitting connector(16), and a plurality of conductive cavities(21). The cavities includes a dielectric resonator(20) to which the antenna connector, the receiving connector, and the transmitting connector are coupled. The duplexer further includes a cover for sealing the conductive cavities and transceives a high frequency signal having a specific frequency. The dielectric resonator includes a receiving dielectric resonator(22a) coupled between the antenna connector and the receiving connector, and a transmitting dielectric resonator(32g) coupled between the antenna and the transmitting connector. The receiving dielectric resonator is a 3-pole dielectric resonator. The transmitting dielectric resonator includes windows(33a-33g) between adjacent cavities to couple 8-pole dielectric resonators arranged in two rows in 'S' shape.