Super Realized Gain Antenna Array
Abstract
In this study, we investigate and fabricate a superdirective antenna array composed of strip dipole elements operating at a frequency of 3.5 GHz. The spacing, dimensions, and phase difference of the elements are optimized to achieve a super realized gain antenna with a theoretical efficiency of 98.8% and computed efficiency of 99.3%. By employing an element spacing of 0.2, the end-fire antenna array demonstrates a maximum theoretical realized gain of 6.4 dBi, and a maximum computed realized gain of 6.3 dBi. Significantly, our proposed superdirective antenna array distinguishes itself from existing approaches by achieving high directivity, high radiation efficiency, and impedance matching to 50 solely through careful adjustments in the strip dimensions and the inter-element phase. This eliminates the need for additional impedance matching networks, amplifiers, or attenuators.
Keywords
Cite
@article{arxiv.2309.09889,
title = {Super Realized Gain Antenna Array},
author = {Donal Patrick Lynch and Manos M. Tentzeris and Vincent Fusco and Stylianos D. Assimonis},
journal= {arXiv preprint arXiv:2309.09889},
year = {2023}
}