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Title: Errors in near-field radioholography
Authors: Morris, D.
Keywords: Fresnel diffraction
antenna radiation patterns
aperture antennas
microwave holography
reflector antennas
Issue Date: Jun-2007
Publisher: Institution of Engineering and Technology
Citation: IET Microwaves, Antennas & Propagation, 2007, Vol.1, p586
Abstract: Formulae are given for the aperture plane phase errors which are incurred in near-field radioholography of reflector antennas when a simple Fresnel correction is used. Approximate analytic expressions are derived for circular data windows and antennas with parabolic illumination taper. Infocus and defocused cases are treated. Numerical simulations are used for estimating errors for square data windows
Description: Restricted Access.
ISSN: 1751-8725
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Copyright: 2007 Institution of Engineering and Technology
Appears in Collections:Research Papers (A&A)

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