Efficient calculation of input impedance of probe-fed microstrip antennas

被引：0
|
作者：
Zheng, Wenquan [1 ]
Wan, Guobin [1 ]
Zhao, Yuchen [1 ]
Qin, Tao [1 ]
机构：
[1] School of Electronics and Information, Northwestern Polytechnical University, Xi'an Shaanxi 710129, China
来源：
Dianbo Kexue Xuebao/Chinese Journal of Radio Science | 2014年 / 29卷 / 02期
关键词：
Antenna feeders - Magnetism - Probes - Electric impedance measurement - Electric fields - Equivalent circuits - Numerical methods - Electric impedance;
D O I：
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中图分类号：
学科分类号：
摘要：
An efficient method for the calculation of input impedance of probe-fed microstrip antennas is proposed. The equivalent magnetic current frill is used to model the coax aperture. The characteristics of the electric field excited by the equivalent magnetic current frill are researched and an improved integration path is proposed to avoid the singularities of the electric field. Based on this, a refinement treated to the mesh at the junction is adopted to model the acute variation of the current, and spatial moment of method is used to calculate the input impedance of square and circle microstrip antennas with closed-form Green's Functions for stratified media. The numerical results are presented to validate the method. © Copyright.
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页码：265 / 269
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