An E-plane horn antenna fed with E-plane Tee junction conceptualized by SIW technology

A novel E-plane horn antenna fed with E-plane Tee junction, conceptualized using the substrateintegrated waveguide (SIW) technology is introduced and investigated. Conventional SIW-inspired horn designs are mostly limited to H-plane sectoral horns, portraying confined radiation along the H-plane while unconfined, fan-beam-shaped radiation along the principal E-plane. Such radiation characteristics restrict its usage to designs requiring an electric field parallel to the structure and ultimately narrow confined radiation along the principal E-plane of the embodiment. The proposed design provides a glue-less solution to designing an E-plane horn fed by an E-plane Tee junction, both conceptualized by the SIW technology, having relative ease of fabrication on dual copper clad Printed Circuit Boards. Such a design operates from 17.15 to 18.8 GHz (similar to 9.2% operating bandwidth) with a realized gain greater than 10.5 dBi, making it suitable for applications requiring light-weighted high-gain E-plane sectoral horn antennas.