Design of a Fully Planar BC-CSRR SIW-based H-plane Sectoral Horn with a Printed Transition

The Broadside Coupled Complementary Split Ring Resonator Substrate Integrated Waveguide (BC-CSRR SIW) is a fully planar platform for the implementation of millimeter-wave components at a minimal fabrication cost. We present here a new design H-plane sectoral horn Antenna based on the BC-CSRR SIW. A transition of parallel plate strips etched on the same substrate is also designed using parametric finite element simulations, in order to improve matching and radiation characteristics. The composite antenna comprising of the BC-CSRR SIW horn and the matching transition exhibits good return loss performance and directive end fire radiation, while the back radiation is kept small.