Summary
International Symposium on Antennas and Propagation
2015
Session Number:S4.12
Session:
Number:S4.12.2
A Composite EBG Resonator Antenna with a Sparse Array Feed
Affan Aziz Baba, Raheel M. Hashmi, Karu P. Esselle,
pp.-
Publication Date:2015/11/9
Online ISSN:2188-5079
Summary:
In this paper, we study performance of a simple electromagnetic band gap (EBG) resonator antenna (ERA) that has a composite all-dielectric superstructure and is excited by a small sparse array. The cavity of the antenna is excited by a 2x2 array of waveguide fed slots with an inter-element spacing of 1.8λ0. The ERA exhibits high gain with an excellent directivity bandwidth of around 20%. The proposed configuration provides improved performance in terms of antenna gain and directivity bandwidth, while significantly minimizing design complexity. Numerical results are presented and a peak gain of 21 dBi is demonstrated.