KFPA Axial Ratio Tests

The KFPA axial ratio is specified to be 1 dB maximum. Axial ratio tests were completed 14 Jan 2009 on the KFPA single-beam receiver. A linearly polarized CW signal was injected to the dewar circular waveguide, and manually rotated while monitoring the IF output power through an IF filter. Axial Ratio results (dB):

F(GHz) RCP LCP
19
0.20
0.44
22
0.62
0.42
24
0.29
0.38
25
0.28
0.34
26
0.54
0.70

-- RogerNorrod - 2009-01-15
Topic revision: r1 - 2009-01-15, RogerNorrod
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