Entire-Domain Basis MOM Analysis of Coupled Microstrip Transmission Lines

Jonathan S. Bagby, Ching Her Lee, Y. Yuan, D. P. Nyquist

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


A full-wave spectral-domain integral equation formulation is used to analyze coupled open-boundary microstrip transmission lines. A general rigorous formulation is specialized to the case of two identical uniform lines and a method of moments (MOM) solution is implemented. In contrast with earlier subdomain basis MOM solutions, entire-domain basis functions which incorporate appropriate edge conditions for transverse and longitudinal current components are utilized. This allows close-form evaluation of relevant spatial integrals and results in improved accuracy using far fewer terms. Numerical results in the form of propagation constants and current distributions are presented for the dominant and first two higher-order coupled modes, and compare favorably to results of other techniques.

Original languageEnglish
Pages (from-to)49-57
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number1
Publication statusPublished - 1992 Jan

All Science Journal Classification (ASJC) codes

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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