Design of K-band Bandpass Filter for Satellite Ground Terminal using Substrate Integrated Waveguide

In this paper Substrate Integrated Waveguide (SIW) bandpass filter with improved stopband performance and compact size is demonstrated for K-band satellite ground terminal. SIW is a promising and potential technology used for miniaturization of microwave components. K-band bandpass filter are designed using linear array of metalized vias on Rogers RT/Duroid 6002 Substrate and can be fabricated using standard printed circuit board process. The insertion loss at the center frequency of 20.3 GHz is 0.33dB and 3dB bandwidth is from 19.3GHz to 21.3GHz.