International Journal of Infrared and Millimeter Waves

, Volume 8, Issue 7, pp 771–781

Radiation patterns of circular apertures with Gaussian illumination

  • Paul F. Goldsmith
Article

DOI: 10.1007/BF01013128

Cite this article as:
Goldsmith, P.F. Int J Infrared Milli Waves (1987) 8: 771. doi:10.1007/BF01013128

Abstract

We analyze the radiation pattern from circular apertures with Gaussian electric field distribution. Patterns are calculated using the Fraunhofer diffraction integral and we obtain a convenient expression for the FWHM beamwidth as a function of the edge taper. The aperture efficiency can be calculated for blocked and unblocked apertures in analytic form. The beam efficiency must be computed numerically, but can be obtained in a straightforward way from the beamwidth.

Copyright information

© Plenum Publishing Corporation 1987

Authors and Affiliations

  • Paul F. Goldsmith
    • 1
    • 2
  1. 1.Millitech CorporationSouth Deerfield
  2. 2.Department of Physics and AstronomyUniversity of MassachusettsAmherst