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Beam-switchable scanning leaky-wave antenna

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3 Author(s)
Chien-Jen Wang ; Inst. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Ying-Chou Shih ; Jou, C.F.

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

Published in:

Electronics Letters  (Volume:36 ,  Issue: 7 )