Optimisation of cross-polarisation performance for tri-reflector CATR withspherical main reflector

Authors
Rieckmann, C Rayner, MR Parini, CG
Citation
C. Rieckmann et al., Optimisation of cross-polarisation performance for tri-reflector CATR withspherical main reflector, ELECTR LETT, 35(17), 1999, pp. 1403-1404
Citations number
3
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
35
Issue
17
Year of publication
1999
Pages
1403 - 1404
Database
ISI
SICI code
0013-5194(19990819)35:17<1403:OOCPFT>2.0.ZU;2-3
Abstract
For a tri-reflector compact antenna test range (CATR) with spherical main r eflector and shaped subreflectors, the crosspolarisation performance is opt imised, based on the beam-mode expansion method. For optimal designs, physi cal optics (PO) calculations of the quiet zone fields are presented, and it is shown that a tradeoff has to be made between a low cross-polarisation l evel and a low amplitude ripple in the quiet zone.