Title :
Active dual-beam aperture-coupled leaky-wave antenna
Author :
Wang, Chien-Jen ; Kao, Nien-An ; Jou, C.F. ; Wu, Jin-Jei
Author_Institution :
Inst. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
11/11/1999 12:00:00 AM
Abstract :
An active aperture-coupled leaky-wave antenna (LWA) with excellent dual-beam scanning capability is presented. An X-band varactor-tuned HEMT VCO is integrated on the other plane through an aperture with the LWA. This antenna has the advantages of multi-functionability, interference shielding, and a scanning main beam. The measured main beam in the elevation plane can be continuously scanned for 20° for each beam as the HEMT VCO frequency is varied from 8.97 to 9.5 GHz. An effective isotropic radiation power of 18.89 dBm for the right beam and 19.06 dBm for the left beam is achieved
Keywords :
active antennas; leaky wave antennas; multibeam antennas; scanning antennas; 8.97 to 9.5 GHz; X-band varactor-tuned HEMT VCO; active dual-beam aperture-coupled leaky-wave antenna; beam scanning; interference shielding; isotropic radiation power; multi-functionability;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19991376
