A decoupling method in characteristic modes tracking

Pengyu Chen, Mang He, Chuanfang Zhang

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The theory of characteristic modes (TCM) is a powerful tool for antenna designers to analyze the radiators systematically, which provides a set of orthogonal eigenmodes and corresponding eigenvalues determined entirely by a structure's geometry and a particular frequency. So tracking the CMs at discrete frequency points over a frequency range is necessary for any wideband modal analysis of complex structure. However, it is still a challenge to track the modes when their eigenvalues are in close proximity. The degeneracy (close eigenvalue) of these modes always leads to an inaccurate eigenvalue tracking result and an unsmooth modal excitation coefficient curve for existing tracking algorithms, especially when frequency increment step is reduced. In this paper, we propose a decoupling method to alleviate the problem by decomposing a pair of degenerated modes into two new modes with consistent evolution of surface current distributions, accurate eigenvalue tracking results and smooth curves of modal excitation coefficients.

源语言英语
主期刊名2017 IEEE 6th Asia-Pacific Conference on Antennas and Propagation, APCAP 2017 - Proceeding
出版商Institute of Electrical and Electronics Engineers Inc.
1-3
页数3
ISBN(电子版)9781538616086
DOI
出版状态已出版 - 25 7月 2018
活动6th IEEE Asia-Pacific Conference on Antennas and Propagation, APCAP 2017 - Xi'an, 中国
期限: 16 10月 201719 10月 2017

出版系列

姓名2017 IEEE 6th Asia-Pacific Conference on Antennas and Propagation, APCAP 2017 - Proceeding

会议

会议6th IEEE Asia-Pacific Conference on Antennas and Propagation, APCAP 2017
国家/地区中国
Xi'an
时期16/10/1719/10/17

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