Parabolic Reflector Modelling Techniques with a Laterally Displaced Feed

PDF

Authors
  1. Arpin, F.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
This document looks at two techniques for modelling the radiation pattern of a parabolic reflector antenna. Both these methods use physical optics to determine the induced currents on the reflector due to the feed. The first method uses MATLAB’s numerical integration routine to compute the far-field radiation pattern. The second method involves segmenting the reflector surface and approximating the amplitude and phase of the surface currents by a first degree polynomial. This approximation allows the integration to be performed analytically in closed-form. Three different reflector configurations are investigated including two configurations with a laterally displaced feed. Both these techniques yield accurate results but the latter technique had a significant improvement in computational efficiency.

Il y a un résumé en français ici.

Report Number
DRDC-OTTAWA-TM-2005-098 — Technical Memorandum
Date of publication
01 Jul 2005
Number of Pages
66
DSTKIM No
CA026113
CANDIS No
523894
Format(s):
CD ROM

Permanent link

Document 1 of 1

Date modified: