kleinesmurf69
Member level 5
understanding and measuring circular polarization
Hello,
I have a few doubts about measuring circular polarized antennas. One method is measuring the antenna under test (AUT) with a linear polarized reference antenna (RA) in 2 orthogonal planes. That is the RA is rotated 90° and the AUT's pattern is measured. If I want to have a radiation pattern in 2 planes, the result is 4 measurements. Now, how do I combine the results to give the RHCP gain, LHCP gain and axial ratio in the 2 planes of the AUT? In other words, what are the equations? I have both the amplitude and phase of the 4 measurements and the results are calibrated.
Thank you very much.
Best regards.
Hello,
I have a few doubts about measuring circular polarized antennas. One method is measuring the antenna under test (AUT) with a linear polarized reference antenna (RA) in 2 orthogonal planes. That is the RA is rotated 90° and the AUT's pattern is measured. If I want to have a radiation pattern in 2 planes, the result is 4 measurements. Now, how do I combine the results to give the RHCP gain, LHCP gain and axial ratio in the 2 planes of the AUT? In other words, what are the equations? I have both the amplitude and phase of the 4 measurements and the results are calibrated.
Thank you very much.
Best regards.