Title :
An aperture coupled linear LWA array with 2-D dual-beam scanning capability
Author :
Hu, Cheng-Chi ; Jou, Christina F. ; Wu, Sin-Jei ; Peng, Song-tsuen
Author_Institution :
Inst. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
6/21/1905 12:00:00 AM
Abstract :
An X-band four element linear microstrip leaky-wave antenna (LWA) array with dual-beam radiation pattern and two-dimensional scanning capability is developed. The measured half power beamwidth of the H-plane and quasi-E-plane radiation patterns are less than 30°. By tuning the DC bias of varactor phase shifter between the antenna element, the main beam can be scanned in azimuth plane from -13° to +13° off broadside. In the elevation plane, the beam-scanning angle is close to 20° as the operating frequency tuned from 11.58 GHz to 12.5 GHz
Keywords :
antenna radiation patterns; leaky wave antennas; linear antenna arrays; microstrip antenna arrays; multibeam antennas; scanning antennas; 11.58 to 12.5 GHz; X-band microstrip leaky-wave antenna array; aperture-coupled linear LWA array; frequency tuning; radiation pattern; two-dimensional dual-beam scanning; varactor phase shifter; Antenna measurements; Antenna radiation patterns; Apertures; Leaky wave antennas; Linear antenna arrays; Microstrip antenna arrays; Microstrip antennas; Power measurement; Tuning; Varactors;
Conference_Titel :
Microwave Conference, 1999 Asia Pacific
Print_ISBN :
0-7803-5761-2
DOI :
10.1109/APMC.1999.828059
