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Errors in near-field radioholography

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Date

2007-06

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Institution of Engineering and Technology

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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

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Keywords

Fresnel diffraction , antenna radiation patterns , aperture antennas , microwave holography , reflector antennas

Citation

IET Microwaves, Antennas & Propagation, 2007, Vol.1, p586

URI

http://hdl.handle.net/2289/3831

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Research Papers (A&A)

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2007 Institution of Engineering and Technology