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The use of the geometrical theory of diffraction in the calculation of antenna patterns of submillimeter and millimeter-wave radiometers

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Abstract

The Geometrical Theory of Diffraction is applied in the calculation of the antenna pattern of a submillimetre/millimetre-wave radiometer. Axial symmetry of the radiometer is shown to lead to considerable simplification of the expressions to be evaluated. It is also shown that the sequence of apertures in the radiometer can be chosen to give extremely high rejection of signals incident at off-axis angles greater than 20o.

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References

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  8. The CAD package, which meets well the particular requirements for optical design work, is MLD2 obtainable from Mountford and Laxon Ltd., Sutton Coldfield, UK. Information on the availability of the GTD and other optical design rout ines can be obtained from one of the authors (RJW); we thank Mr. D. Mountford for valuable advice during their preparation.

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Authors and Affiliations

  1. Department of Physics, Queen Mary College, Mile End Road, El 4NS, London, UK

    D. H. Martin, R. J. Wylde & R. J. Martin

Authors
  1. D. H. Martin
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  2. R. J. Wylde
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  3. R. J. Martin
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Martin, D.H., Wylde, R.J. & Martin, R.J. The use of the geometrical theory of diffraction in the calculation of antenna patterns of submillimeter and millimeter-wave radiometers. Int J Infrared Milli Waves 9, 837–860 (1988). https://doi.org/10.1007/BF01010625

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  • DOI: https://doi.org/10.1007/BF01010625

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