Title :
Beam-switchable scanning leaky-wave antenna
Author :
Wang, Chien-Jen ; Shih, Yiag-Chou ; Jou, C.F.
Author_Institution :
Inst. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
3/30/2000 12:00:00 AM
Abstract :
A beam-switchable scanning leaky-wave antenna (LWA) has been developed. This LWA with a two-terminal feeding microstrip line structure is integrated with a single port double throw (SPDT) switch as a control circuit. In dual-beam mode, the scanning angle is steered over a range of 36-64° for the right-hand beam and 144-116° for the left-hand beam. In one-beam mode, the scanning angle is measured over 20° for the right-hand beam. The measured result shows that we can change from the one-beam mode to the dual-beam mode electronically by controlling the on/off status of an SPDT switch, in contrast to the case for traditional leaky-wave antennas
Keywords :
active antennas; antenna feeds; antenna radiation patterns; leaky wave antennas; millimetre wave antennas; scanning antennas; beam-switchable scanning leaky-wave antenna; dual-beam mode; on/off status; one-beam mode; scanning angle; single port double throw switch; two-terminal feeding microstrip line structure;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000476
