Gain and aperture efficiency for a reflector antenna with an array feed

被引：24
|
作者：
Warnick, Karl F. [1 ]
Jeffs, Brian D. [1 ]
机构：
[1] Brigham Young Univ, Dept Elect & Comp Engn, Provo, UT 84602 USA
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2006年 / 5卷
基金：
美国国家科学基金会;
关键词：
active arrays; antenna array feeds; aperture efficiency; array gain; gain;
D O I：
10.1109/LAWP.2006.886308
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：
A figure of merit for array antennas can be defined using the signal processing concept of signal-to-noise ratio (SNR) gain. The resulting array efficiency metric reduces to aperture efficiency for an isolated array and to a combination of aperture and spillover efficiency for an array feed. These results provide a practical way to measure aperture efficiency for active arrays and array feeds.
引用
收藏
页码：499 / 502
页数：4
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