Dual-Band Advanced Short Backfire Antenna With 100% Aperture Efficiency Over a Wide Range of Diameters

被引：2
|
作者：
Binion, J. Daniel [1 ]
Mussman, Colin A. [1 ]
Lier, Erik [2 ]
Hand, Thomas H. [2 ]
Werner, Douglas H. [1 ]
机构：
[1] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA
[2] Lockheed Martin Space, Littleton, CO 80125 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2022年 / 70卷 / 09期
关键词：
100% aperture efficiency; advanced short backfire antenna (A-SBFA); metasurface; multiobjective optimization; OPTIMIZATION; DESIGN;
D O I：
10.1109/TAP.2022.3177416
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this article, we demonstrate that a circular advanced short backfire antenna (A-SBFA) can be optimized for high single- or dual-band aperture efficiency over a range of different aperture sizes. Optimization methods developed previously to utilize anisotropic, dispersive metasurfaces on the cavity walls of the hexagonal A-SBFA are modified and applied to achieve 100% aperture efficiency at two frequency bands for circular aperture diameters spanning a remarkably large range from 1.0 lambda(0) up to 2.13 lambda(0). Furthermore, a single-frequency optimization was able to achieve a design with 100% aperture efficiency for an A-SBFA with a diameter of 2.6 lambda(0), the highest known achievable efficiency for an antenna of its aperture size, and overall height. Finally, simulations revealed the first compact hard horn or open-ended waveguide design with close to 100% aperture efficiency below 1.6 lambda(0).
引用
收藏
页码：7786 / 7797
页数：12
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