K/Ka-Band Integrated Duplexer for SatCom on the Move User Terminals

The design and test of a package-integrated duplexer for K/Ka-Band Satcom on the move user terminals is presented. The proposed structure is very compact and it is embedded into a package stackup. Two elliptic bandpass filters, one for TX and one for RX bandwidths have been used to provide wider and lower out-of-band suppression and good standing wave ratio. Simulated and measured results demonstrate that the proposed duplexer can be very suitable for Satcom systems in K/Ka-band, as its compactness will provide easy feasibility for the integration with RF chips and antenna elements to realize an Antenna Front End (AFE).