A survey of the effects of reflector surface distortions on sidelobe levels

Author

Corkish, R.P.

Author_Institution

CSIRO Div. of Radiophys., Epping, NSW, Australia

Volume

32

Issue

6

fYear

1990

Firstpage

6

Lastpage

11

Abstract

A survey of the literature relating to the effects of reflector surface distortions is presented, with particular attention to the Zernike-mode method of describing distortions and calculating the resultant radiation patterns. The errors are classified on the basis of whether they are random or systematic, since that is what determines the method of treatment. Systematic errors are further classified as periodic or nonperiodic. The results of studies into sidelobes generated by periodic surface distortions call into question the suitability of the current method of sidelobe envelope specification.<>

Keywords

antenna radiation patterns; error analysis; reflector antennas; Zernike-mode method; nonperiodic errors; periodic errors; radiation patterns; random errors; reflector antennas; reflector surface distortions; sidelobe envelope specification; sidelobe levels; systematic errors; Antenna radiation patterns; Apertures; Degradation; Noise reduction; Performance gain; Receiving antennas; Reflector antennas; Rough surfaces; Surface roughness; Surface treatment;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/74.80629

Filename

80629