Mode-Selective Corrugated Substrate Integrated Waveguide: A New SIW Transmission Line : Design a new mode-selective transmission line

In this paper, a new kind of corrugated substrate integrated waveguide named Mode-selective Corrugated Substrate Integrated Waveguide(MSCSIW) is presented. Due to the two arrays of stubs, this kind of transmission line could be integrated with active devices well. And the additional two slots on top surface help the transmission line acquire the new mode-selective feature. The propagation characteristics are simulated from 10GHz to 21GHz, the simulation results show that the insert loss is about -0.8 dB and the result of return loss is less than -15dB. This kind of transmission line is presented for the first time.