Title :
Time-modulated receive arrays
Author_Institution :
Ball Aerosp. & Technol. Corp., Westminster, CO, USA
Abstract :
Time-modulated arrays open and close switches in order to connect and disconnect elements from the feed network and generate an “average” low sidelobe array. This paper presents an analysis of the instantaneous array factor, and its effect on received signals in order to demonstrate how time-modulation causes significant fluctuations in the directivity and does not reject sidelobe interference as well as standard static low sidelobe approaches.
Keywords :
antenna arrays; receiving antennas; feed network; sidelobe interference rejection; standard static low sidelobe approach; time-modulated receive antenna array; Adaptive arrays; Chebyshev approximation; Feeds; Interference; Mathematical model; Modulation; Antenna arrays; adaptive arrays; antenna pattern synthesis; arrays component; time-modulation;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996439
