標題: Simultaneous Determination of Complex Permittivity and Permeability of Columnar Materials With Arbitrarily Shaped Cross Section
作者: Miyagawa, Hayato
Wakino, Kikuo
Lin, Yu-De
Kitazawa, Toshihide
電信工程研究所
Institute of Communications Engineering
關鍵字: Arbitrarily shaped sample;hybrid method;inverse problem;permittivity and permeability;spectral-domain approach
公開日期: 1-九月-2009
摘要: An effective simultaneous evaluation method for the complex permittivity and permeability of lossy materials is proposed by applying it to an arbitrarily shaped cross-sectional post placed in a rectangular waveguide. We use one sample and only measure S(21) parameters for two different locations of the sample. The measurement of complex reflection parameter S(11) is not required in this evaluation method. The scheme of electromagnetic field analysis for the evaluation is based on the extended spectral-domain approach combined with the mode-matching method, which is accurate and efficient, and can be flexibly used for the iterative fitting operation for the estimation of material parameters. Sample preparation and setting is significantly easier in this method compared to conventional methods. The error caused by deviations in the setting of a sample is investigated. The estimated values for the sample material by this procedure show good agreement with the results obtained using the conventional method over the X-band.
URI: http://dx.doi.org/10.1109/TMTT.2009.2027201
http://hdl.handle.net/11536/6704
ISSN: 0018-9480
DOI: 10.1109/TMTT.2009.2027201
期刊: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
Volume: 57
Issue: 9
起始頁: 2249
結束頁: 2256
顯示於類別:期刊論文


文件中的檔案:

  1. 000269648800016.pdf