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Gaussian beam mode analysis of the coupling of power between horn antennas

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Abstract

Gaussian beam mode analysis can be applied in an elegant way to study the coupling of power between two horn antennas. Coupling efficiencies are evaluated for a number of horn combinations and the results presented in a straightforward form useful in the design of submillimetre-wave interferometers and astronomical receiver systems. We show that there is a marked variation in efficiency (up to 30%) depending on the coupling optics, even for beams with well matched profiles.

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Authors and Affiliations

  1. Experimental Physics Department, St. Patrick’s College, Maynooth, Ireland

    J. A. Murphy & M. McCabe

  2. Cavendish Laboratory, Madingley Road, Cambridge, England

    S. Withington

Authors
  1. J. A. Murphy
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  2. M. McCabe
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  3. S. Withington
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Murphy, J.A., McCabe, M. & Withington, S. Gaussian beam mode analysis of the coupling of power between horn antennas. Int J Infrared Milli Waves 18, 501–518 (1997). https://doi.org/10.1007/BF02677936

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  • DOI: https://doi.org/10.1007/BF02677936

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