Using hardware gating to improve antenna gain measurements in compact antenna range

Results are presented for antenna gain measurements in a compact antenna range at a frequency below the minimum specified operating frequency of the range. Hardware gating is used to reduce clutter or unwanted scattering from the backlobe of the feed and the walls of the chamber. Measured time domain data are presented which prove that these stray signals can be eliminated from the incident field in the test zone, and frequency data are presented to show the improvement in measured antenna gain