Matrix-Pencil Method Based Multipath Signal Suppression for Antenna Measurement Calibration Inside Anechoic Chamber

Abstract

A calibration procedure, based on matrix pencil method process over a set of antenna radiation data at a single frequency, is presented to suppress multipath signals. Both one-and two-dimensional measurement scenario are examined to validate the concept. In this method, the chamber environment is first diagnosed by performing a measurement over several Linearly distributed positions to resemble a set of l-D/2-D phased array of antennas to determine the multi-path signals. An inverse calibration procedure is afterward performed to recover the actual radiation pattern from the one with multipath signals.