Pseudo-Interdigital Wideband Bandpass Filter based on Substrate Integrated Coaxial Line (SICL)

Abstract

In this paper, a novel compact pseudo-interdigital wideband bandpass filter based on substrate integrated coaxial line(SICL) is proposed in this paper. The proposed bandpass filter which can be realized in standard printed circuit boards (PCB). There are three resonance points in the frequency band, A filter prototype with compact size is simulated and the results indicate that the proposed filter centered at 5.6 GHz is realized with a bandwidth of 60%. The filter has the characteristics of low loss and low crosstalk.