Compact wide-band and low loss substrate integrated waveguide

Here in this article we propose a new design of Slow-Wave Substrate Integrated Waveguide (SW-SIW). The proposed design besides the miniaturization have the advantages of being low loss and Wide-Band. The reflection coefficient is decreased between 5dB and 10dB, the Band Width of the new transmission is almost 16.6GHz, the miniaturization is of 38% very slightly reduced from previous published works. The same transmission line is simulated with different type of substrates, Fr4-epoxy, RO4003, RO5880, results are compared and analyzed, in order show the effectiveness of the new SW-SIW transmission line.