Title :
Absorptive frequency selective radome
Author :
Costa, Filippo ; Monorchio, Agostino
Author_Institution :
Dip. Ing. dell´´Inf., Univ. of Pisa, Pisa, Italy
Abstract :
A frequency selective radome is presented, acting as a pass band filter at a given frequency band, while behaving as an absorber out of the operating band. The reflection band of the FSS filter is used as the ground plane of a outer wideband absorber based on resistive high-impedance surfaces. The absorber, which reduces the signature of the antenna system illuminated by out of band signals, comprises a resistive FSS designed to minimize losses within the transmitting band of the radome. The composite structure is thoroughly analyzed by an efficient equivalent circuit approach and by full-wave numerical simulations.
Keywords :
band-pass filters; frequency selective surfaces; numerical analysis; radomes; FSS filter; absorptive frequency selective radome; antenna system; equivalent circuit; full-wave numerical simulations; ground plane; outer wideband absorber; pass band filter; reflection band; resistive high-impedance surfaces; Frequency selective surfaces; Insertion loss; Radar antennas; Reflection; Transmitting antennas; Wideband;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050688
