Mutual coupling in arrays of coaxial waveguides and horns

Trevor S. Bird

doi:10.1109/TAP.2004.825487

Mutual coupling in arrays of coaxial waveguides and horns

Trevor S. Bird^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 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 language	English
Pages (from-to)	821-829
Number of pages	9
Journal	IEEE Transactions on Antennas and Propagation
Volume	52
Issue number	3
DOIs	https://doi.org/10.1109/TAP.2004.825487
Publication status	Published - Mar 2004
Externally published	Yes

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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10.1109/TAP.2004.825487

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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.",

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Mutual coupling in arrays of coaxial waveguides and horns

Abstract

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Keywords

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