Gain and bandwidth enhancement for a superconducting electrically small antenna

被引：1
|
作者：
Wang, Ruixia [1 ]
Wei, Bin [1 ]
Cao, Bisong [1 ]
Jiang, Linan [1 ]
机构：
[1] Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
来源：
APPLIED PHYSICS EXPRESS | 2015年 / 8卷 / 04期
基金：
中国国家自然科学基金;
关键词：
OPTICAL ANTENNAS;
D O I：
10.7567/APEX.8.043102
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present a technique that enhances the gain of a superconducting electrically small antenna by manipulating the electromagnetic ( EM) near-fields on the antenna aperture to increase the effective aperture area. The antenna has a conducting split ring and three parasitic T-shaped conducting structures to manipulate its EM near-fields. When the distribution of the EM near-fields becomes uniform, the effective aperture area increases, enhancing the antenna gain and bandwidth. The concept proposed in this study is applicable to a single electronically small antenna as well as to an element of an antenna array. (C) 2015 The Japan Society of Applied Physics
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页数：3
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