Title :
Azimuth scanning, Ka-band phased array antenna
Author :
Chen, S. ; du Toit, C. ; Hersey, K. ; Pao, D. ; Karasack, V. ; Patel, J. ; Ramesh, M. ; Sui, C. ; Ekelman, E.
Author_Institution :
Paratek Microwave, Inc, Columbia, MD, USA
Abstract :
The antenna presented uses vertical linear polarization and scans from -45/spl deg/ to +45/spl deg/ in the azimuth plane and has a fixed cosecant squared beam in the elevation plane. This paper presents the performance and measurement results for a 1-D scanning phased array antenna with a 16/spl times/16 element configuration. Gain is measured to be 22.5 dBi at 0/spl deg/ scan. The measured radiation patterns, gains and active return loss for scans from -45/spl deg/ to +45/spl deg/ in 5/spl deg/ steps demonstrate consistent patterns with no grating lobes and blindness. This performance is attributed to minimum mutual coupling effects of this microstrip patch array.
Keywords :
antenna phased arrays; antenna radiation patterns; microstrip antenna arrays; microwave phase shifters; scanning antennas; 1D scanning phased array antenna; 22.5 dB; 27.5 to 28.5 GHz; Ka-band phased array antenna; active return loss; azimuth scanning antenna; cosecant squared beam; elevation plane; finline waveguide phase shifter; gain; microstrip patch array; minimum mutual coupling effects; radiation patterns; vertical linear polarization; waveguide power divider; Antenna arrays; Antenna measurements; Antenna radiation patterns; Azimuth; Gain measurement; Gratings; Loss measurement; Phase measurement; Phased arrays; Polarization;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.960220
