An Effective Method of Isolating Portions of a Radiator in Near-Field or Far-Field Antenna Measurements

作者：Pogorzelski Ronald J^*

来源：IEEE Antennas and Propagation Magazine, 2013, 55(3): 156-168.

DOI：10.1109/MAP.2013.6586646

• Antenna measurements
• antenna radiation patterns
• spherical near-field measurements
• spherical mode filter

An iterative post-measurement data-processing procedure is proposed that effectively separates the field radiated by a selected part of a radiating system from the total radiated field. No additional measurement is required, and the processing involves only the usual expansion and summation procedures normally used in near-field data processing. T he accuracy of the result far exceeds that of the conventional filtering technique. Applications include elimination of the effects of certain types of fixtures, and enhancement of certain chamber artifact-removal techniques. T he example of separating the feed pattern from a simulated measurement of a reflector antenna's radiation field is presented in both a spherical near-field scenario and a single-cut far-field scenario.

• 出版日期2013-6