Application of single probe correction file for multi-frequency spherical near-field antenna measurements

摘要

In this paper, applicability of using a single probe correction file for processing of multi-frequency results from spherical near-field antenna measurements is investigated. The investigation is carried out for typical probes, an open-ended rectangular waveguide and an open-ended chocked circular waveguide, and for aperture-type antennas under test of various electrical sizes with several distances to the probe. The obtained results show that due to small variation of the probe pattern with frequency, application of single probe correction file is possible in rather wide frequency range for many antennas under test with the resulting error remaining at very low level.