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Type: Conference paper
Title: Mode matching analysis of dimension for single-mode operation of shielded microstrip lines
Author: Zhao, C.
Fumeaux, C.
Kaufmann, T.
Zhu, Y.
Lim, C.
Citation: Proceedings of the 2015 Asia-Pacific Microwave Conference, 2015 / Hong, W., Zhu, X., Yang, G., Song, Z., Meng, F. (ed./s), vol.2, pp.1-3
Publisher: IEEE
Issue Date: 2015
Series/Report no.: Asia Pacific Microwave Conference-Proceedings
ISBN: 978-1-4799-8765-8
Conference Name: 2015 Asia-Pacific Microwave Conference (APMC 2015) (6 Dec 2015 - 9 Dec 2015 : Nanjing, China)
Editor: Hong, W.
Zhu, X.
Yang, G.
Song, Z.
Meng, F.
Statement of
Cheng Zhao, Christophe Fumeaux, Thomas Kaufmann, Yingbo Zhu, and Cheng-Chew Lim
Abstract: Shielded microstrip lines are widely used in microwave and millimeter wave systems to connect devices while protecting circuits from environmental contaminants, preventing electromagnetic interference, and enhancing the mechanical strength. To avoid the influence of the metallic enclosures on the fundamental mode, the choice of dimensions for the housing is an important issue. In this paper, the influence of those dimensions on the fundamental mode is investigated rigorously using the mode matching technique. In addition, the relationships between the cutoff frequency of the second-order mode and those geometrical variables of the cross-section of the shielded transmission line are presented. With these relationships, a reasonable geometry can be efficiently determined, which is important to prevent performance degradation through higher-order mode excitations, e.g. in waveguide transitions. The analysis results are verified with finite-element simulations obtained with HFSS.
Keywords: Shielded microstrip line, mode matching technique
Rights: © 2015 IEEE
DOI: 10.1109/APMC.2015.7412934
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Electrical and Electronic Engineering publications

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