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An Improvement of the Perturbation Method Using a TM010 Mode Cylindrical Cavity
Hirokazu KAWABATA Hiroshi TANPO Yoshio KOBAYASHI
IEICE TRANSACTIONS on Electronics
Publication Date: 2003/12/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Recent Trends on Microwave and Millimeter Wave Application Technology)
perturbation method, complex permittivity, Ritz-Galerkin method,
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Effects of the sample insertion holes of the TM010 mode cylindrical cavity are analyzed on the basis of rigorous analysis by the Ritz-Galerkin method. The measurement accuracy of complex permittivity is examined by comparing the values by the perturbation method with ones by the rigorous analysis. Charts of relative errors Δ ε/εp and Δ tan δ/tan δp are presented, which are useful to measure the complex permittivity accurately by the perturbation method. The present analysis extends the validity of the conventional perturbation method.