同轴馈电微带天线输入阻抗的高效精确计算

郑文泉; 万国宾; 赵雨辰; 秦涛

doi:10.13443/j.cjors.2013030402

同轴馈电微带天线输入阻抗的高效精确计算

西北工业大学电子信息学院,陕西西安710129

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通信作者:
郑文泉 E-mail:zhengwenquan2006@yahoo.com.cn

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出版历程
- 收稿日期: 2013-03-03
- 网络出版日期: 2020-12-30
- 发布日期: 2014-04-29

Efficient calculation of input impedance of probe-fed microstrip antennas

School of Electronics and Information, Northwestern Polytechnical University, Xi’an Shanxi 710129, China

摘要

摘要:
提出了一种高效精确计算同轴馈电微带天线输入阻抗的方法.采用等效磁流环模型模拟同轴馈电，通过深入研究该馈电模型的激励电场，提出一种改进的数值积分路径以避开激励电场中的奇异点，在此基础上，对贴片在线面连接处作细化处理来模拟连接处剧烈变化的电流，结合分层介质格林函数，采用空域矩量法计算了方形和圆形同轴馈电微带天线的输入阻抗.计算结果与仿真软件结果吻合较好，证明了该方法的正确性.
- 同轴馈电微带天线 /
- 等效磁流环 /
- 空域矩量法 /
- 输入阻抗
Abstract:
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.
- probe-fed microstrip antennas /
- equivalent magnetic current frill /
- spatial moment of method /
- input impedance

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参考文献(15)

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