Implementation of two-element antenna array with right/left-handed transmission line metamaterials

Kui Song Zheng, Chang Ying Wu, Guo Bin Wan, Gao Wei

科研成果: 期刊稿件文章同行评审

摘要

To overcome the limitation that the linear transverse dimension of microstrip antenna is of the order of half wavelength, a two-element antenna array has been proposed with composite right/left-handed transmission line metamaterials in this paper. The antenna array is made of two same antenna elements. Each element consists of three radiating patches, interdigital capacitance between two radiation patches and shorted pin connecting radiating patch with ground plane. Therefore, a composite right/left-handed transmission line metamaterials is constituted by radiating patch, shorted pin, antenna of substrate and ground plane. An arched microstrip line is used to connect two antenna elements. The phase difference between two antenna elements is set by adjusting the length of arched microstrip line. S parameters of antenna array obtained by numerical computation are in good agreement of that obtained by measurement. Meanwhile, zeroth-order resonant frequency of two-element antenna array is consistent with that estimated by the circuit theory with extracting equivalent circuit parameters of composite right/left-handed transmission line metamaterials. The peak gain of this antenna array is 6.3 dB. Seen from this point, the antenna peak gain is enhanced. When operating in the zeroth-order resonant frequency, physical dimensions of this antenna element are reduced to 0.28λ0×0.1λ0. Here λ0 is a zeroth-order resonant wavelength. The proposed antenna array is a novel venue for antenna miniaturization.

源语言英语
文章编号054104
期刊Wuli Xuebao/Acta Physica Sinica
60
5
出版状态已出版 - 5月 2011

指纹

探究 'Implementation of two-element antenna array with right/left-handed transmission line metamaterials' 的科研主题。它们共同构成独一无二的指纹。

引用此