Analysis of a rectangular waveguide, edge slot array with finite wall thickness

John C. Young, Jiro Hirokawa, Makoto Ando

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


A method to analyze a one-dimensional array comprising tilted edge slots cut in the narrow wall of a rectangular waveguide is presented. The fields in the slots are calculated from a hybrid finite element-boundary integral (FE-BI) equation method. The boundary surface integrals on both the interior and exterior surface of the slots are computed from a spectrum of two-dimensional solutions (S2DS), which allows the influence of both the interior and exterior structure of the waveguide to be included rigorously. For initial array design, the mutual coupling between slots in the exterior region is treated approximately with an infinite array assumption modeled by two slots surrounded by periodic boundary walls with an imposed linear phase progression. A short, finite slot array is designed based on the infinite array assumption and fabricated. Results from full-wave analysis of the array and measurements are presented.

Original languageEnglish
Pages (from-to)812-819
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number3 II
StatePublished - Mar 2007

Bibliographical note

Funding Information:
Manuscript received June 27, 2005; revised July 3, 2006. This work was supported by the Japan Society for the Promotion of Science (JSPS) through a JSPS Postdoctoral Fellowship. The authors are with the Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, Tokyo 158-8552, Japan (e-mail: Digital Object Identifier 10.1109/TAP.2007.891806


  • Edge slot
  • Finite element-boundary integral (FE-BI)
  • Spectrum of two-dimensional solutions (S2DS)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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