Mutual coupling in arrays of coaxial waveguides and horns

Trevor S. Bird*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

A solution is presented for the mutual coupling between the modes of different-sized circular coaxial aperture arrays, which are used as direct radiators and feed antennas. This solution is expressed in terms of integral transforms and the mutual admittances for the cross coupling between all three mode types, TE, TM, and TEM, are obtained. The accuracy of this new integral formulation is demonstrated by comparing computed results with measured data for a three-element test array. Excellent agreement is obtained between theory and experiment for both coupling coefficients and radiation patterns. Results are also presented for a coaxial feed array for the Lovell radio telescope.

Original languageEnglish
Pages (from-to)821-829
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume52
Issue number3
DOIs
Publication statusPublished - Mar 2004
Externally publishedYes

Bibliographical note

A correction for this article exists in IEEE Transactions on Antennas and Propagation vol. 53, issue 9, p. 3114. DOI: 10.1109/TAP.2005.854552

Keywords

  • antenna array feeds
  • antenna array mutual coupling
  • coaxial aperture antennas
  • coaxial waveguides

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