Title :
Performance comparison between serrated edge and rolled edge reflectors inside CATR facilities
Author :
Muñoz-Acevedo, A. ; Burgos, S. ; Sierra-Castañer, M.
Author_Institution :
Dept. Senales, Sist. y Radiocomun., Univ. Politec. de Madrid (UPM), Madrid, Spain
Abstract :
CATR facilities are attractive antenna measurement facilities. Main reasons which contribute to this fact lie on its inherent reduced volume, on-the-fly measurements and the extension of both to a wide range of frequencies. However, these features rely on the assumption that the field collimation scheme is able to generate a plane wave distribution (quiet zone) where the AUT is to be placed and operated in RX mode. Unfortunately, electromagnetic theory states that this field distribution is not possible to be generated by a finite size scatterer operated as the collimator of a nonzero wavelength time-harmonic propagating field. This is the background of this paper, where two well-known electromagnetic field collimators will be discussed: the serrated edge reflector and the blended rolled edge reflector. To reach this purpose, electromagnetic hybrid analysis techniques developed at Technical University of Madrid will be applied.
Keywords :
antenna testing; electromagnetic field theory; electromagnetic wave propagation; electromagnetic wave scattering; optical collimators; reflector antennas; AUT; CATR facilities; RX mode; antenna measurement facilities; electromagnetic field collimator; electromagnetic theory; field distribution; finite size scatterer; plane wave distribution; rolled edge reflector; serrated edge reflector; time-harmonic propagating field; Accuracy; Antenna measurements; Collimators; Feeds; Monitoring; Reflector antennas;
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1