High Order Extractions of Broadband Green's Function with Low Wavenumber Extractions for Arbitrary Shaped Waveguide

IF 6.7 1区 计算机科学 Q1 Physics and Astronomy Progress in Electromagnetics Research-Pier Pub Date : 2017-01-01 DOI:10.2528/PIER16101003
T. Liao, K. Ding, L. Tsang
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引用次数: 11

Abstract

In this paper we develop a higher order extraction method to accelerate the convergence in the computation of broadband Green’s function (BBGFL) for an arbitrary shaped homogeneous waveguide.The broadband Green’s function is based on modal expansions in which the modal field solutions are frequency independent. The higher order extraction is obtained by using three low wavenumbers in extraction. It gives a modal expansion of Broadband Green’s Function with 6th order convergence requiring fewer evanescent modes for convergence. Numerical results are illustrated for both lossless and lossy dielectric cases. The accuracy of results are verified with direct method of moment (MoM) and HFSS. The higher order BBGFL method is computationally efficient for broadband simulations.
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基于低波数提取的任意形状波导宽带格林函数高阶提取
为了加快任意形状均匀波导宽带格林函数(BBGFL)计算的收敛速度,提出了一种高阶提取方法。宽带格林函数基于模态展开,其中模态场解与频率无关。利用三个低波数进行高阶提取。给出了具有6阶收敛的宽带格林函数的模态展开式,该展开式需要较少的收敛模态。给出了无损和有损介质情况下的数值结果。用直接矩法(MoM)和HFSS验证了结果的准确性。高阶BBGFL方法在宽带仿真中具有较高的计算效率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
7.20
自引率
3.00%
发文量
0
审稿时长
1.3 months
期刊介绍: Progress In Electromagnetics Research (PIER) publishes peer-reviewed original and comprehensive articles on all aspects of electromagnetic theory and applications. This is an open access, on-line journal PIER (E-ISSN 1559-8985). It has been first published as a monograph series on Electromagnetic Waves (ISSN 1070-4698) in 1989. It is freely available to all readers via the Internet.
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