Gain and bandwidth enhancement for a superconducting electrically small antenna

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 structur...

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Bibliographic Details
Published in:Applied physics express 2015-04, Vol.8 (4), p.43102
Main Authors: Wang, Ruixia, Wei, Bin, Cao, Bisong, Jiang, Linan
Format: Article
Language:English
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Summary: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.
ISSN:1882-0778
1882-0786
DOI:10.7567/APEX.8.043102