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Millimetre wave leaky wave antenna using an H-guide loaded with a corrugated ferrite

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3 Author(s)
Hasegawa, H. ; Fac. of Eng. & Design, Kyoto Inst. of Technol., Japan ; Shimasaki, H. ; Tsutsumi, M.

The magnetically scannable millimetre wave leaky wave antenna using an H-guide loaded with a corrugated ferrite slab was proposed and demonstrated both theoretically and experimentally at Q-band (33-50 GHz). The average scanning rate for the magnetic field was found to be 2°/0.1 T with the average half-power beamwidth of 5.5° at 45 GHz, which agrees with the numerical results based on the exact dispersion relation of the H11x mode. Also the effects of a metal reflector backing the corrugated structure at a certain distance have been examined

Published in:

Microwaves, Antennas and Propagation, IEE Proceedings  (Volume:144 ,  Issue: 6 )