Improving the Cross-Polar Discrimination of Compact Antenna Test Range using the CXR Feed

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In this paper, the QZ cross-polar reduction properties of the CXR feed is measured in a standard corner-fed CATR in both orthogonal polarization over the full 1.6:1 bandwidth.

The advantages of the CXR  in general measurement  scenarios  are investigated  by measurement  of an antenna  with  low  cross-polarization level at different QZ positions and frequencies. It is shown that a cross-polar discrimination improvement up to 10dB is achievable. 

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