Metamaterial Filter and Duplexer for X-band and Ku-band Satellite Communication

摘要

In this paper, a flat and small-footprint slot array antenna is proposed to build a light-weight X- and Ku-band satellite communication receiver. The overall geometry does not necessitate classic metallic waveguides to avoid being bulky and heavy, but has a very compact and low-loss duplexer flanked by the X- and Ku-band slot-array antennas all of which are in the form of SIW (substrate integrated waveguide). The conventional technology has not shown the case that SIWs and slot-arrays have been incorporated to a low-profile and new concept duplexer. In order to conduct easy manufacturing in one frame and achieve effective volume-reduction, all the components for the dual-band slot-array system are designed as the metamaterial SIW duplexer cascaded by the SIW X-band slot array and the Ku-band antenna. The proposed geometry is presented as follows with X-band and Ku-band far-field directive radiation patterns.