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Mode theory of multilayer waveguide structure with discontinuities

  • Letters
  • Published:
Journal of Electronics (China)

Abstract

TE n mode (whose electric field is zero in the normal direction of the boundaries between layers) and TM n mode (whose magnetic field is zero in the normal direction of the boundaries between layers) are defined. Then conditions under which pure TE n (TM n ) modes may exist in multilayer waveguide structure with discontinuities are presented. E (H) step wavguides, ridged wavguides, microstrip lines and fin lines all satisfy the conditions, and hold for TE n (TM n ) mode. The conventional conclusion that ridged waveguides with inhomogeneous dielectric-slab loading, microstrip lines and fin lines only hold for hybrid modes is revised. Compared with hybrid modes, the number of unknown variations and matching equations is reduced by half for pure TE n (TM n ) modes, and the computation cost is decreased dramatically.

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Authors and Affiliations

  1. National Key Lab of Antenna and Microwave Technology, Xidian University, 710071, Xi’an

    Zong Weihua & Liang Changhong

Authors
  1. Zong Weihua
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  2. Liang Changhong
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Additional information

Supported by the National Natural Science Foundation of China under grant No.698710121 and 699301030.

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Cite this article

Zong, W., Liang, C. Mode theory of multilayer waveguide structure with discontinuities. J. of Electron.(China) 20, 237–240 (2003). https://doi.org/10.1007/BF02687712

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  • DOI: https://doi.org/10.1007/BF02687712

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