IMPROVED POINT-SOURCE AND LINE-SOURCE COMPACT ANTENNA RANGES
Abstract:
A point-source and a line-source compact antenna range were modified by installing on each a range reflector having a more accurate surface contour and by shielding the point-source reflector edge and its feed with absorbing material. Stray radiation measurements and antenna pattern measurements were made on both ranges at X-band 8.2 to 12.0 GHz frequencies using a 30-inch paraboloidal test antenna these measurements also were made on the point-source range at C-band 5.4 to 5.8 GHz and at S-band 2.8 to 3.2 GHz frequencies using pyramidal horn antennas. Results at X-band frequencies are compared with those obtained on previously constructed similar compact ranges, and they demonstrate that the range performance was improved. Antenna radiation patterns compare very favorably with those measured on outdoor antenna ranges.