ESTIMATION OF THE ANTENNA PHASE CENTER POSITION IN ANECHOIC CHAMBER

An algorithm for the calculation of the position of the antenna phase center is presented. It exploits field measurements carried out in anechoic chamber, and overcomes the main limitation of the two-point approach available in the literature. In particular, the proposed procedure is capable of accounting for the possible presence of an undesired and unknown misalignment between the geometrical axis of symmetry of the Antenna Under Test (AUT) and the rotation axis of the turntable where the AUT is placed within the chamber. The algorithm has been tested in anechoic chamber of the Dipartimento di Ingegneria of the Università degli Studi di Napoli "Parthenope" on a radar antenna operating at X-Band.