Title :
Virtual array antenna with displaced phase centers for GMTI applications
Author :
Pour, Z. Allahgholi ; Shafai, L. ; Mehrabani, A.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada
Abstract :
A novel multi-phase center reflector antenna is introduced for the Ground Moving Target Indicator (GMTI) applications. A single antenna is used to virtually make it more than one antenna by controlling the excitation modes of the dual-mode primary feed. First, the multi-mode primary feed is analytically modeled to study the concept in general. Then, the results are presented for the dual-mode stacked circular microstrip patch antenna placed at the focal point of an offset reflector antenna.
Keywords :
microstrip antennas; reflector antennas; GMTI application; displaced phase center; dual-mode primary feed; dual-mode stacked circular microstrip patch antenna; excitation modes; ground moving target indicator application; multimode primary feed; multiphase center reflector antenna; offset reflector antenna; single antenna; virtual array antenna; Antenna feeds; Antenna radiation patterns; Apertures; Microstrip; Microstrip antennas; Reflector antennas;
Conference_Titel :
Radar Conference (RADAR), 2011 IEEE
Conference_Location :
Kansas City, MO
Print_ISBN :
978-1-4244-8901-5
DOI :
10.1109/RADAR.2011.5960653
