Polarisation discrimination in shaped beam applications
- 26 February 1987
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 23 (5) , 238-239
- https://doi.org/10.1049/el:19870168
Abstract
In antenna test ranges the crosspolarisation of a shaped reflector antenna is measured utilising Ludwig's third definition. However, in practice crosspolarisation discrimination (XPD) does not depend on any arbitrary definition. The letter calculates the variation of XPD in a shaped beam and finds considerable difference between the XPD and that calculated using Ludwig's third definition.Keywords
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