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This work proposes a novel multi-beam leaky-wave pillbox antenna. The antenna system is based on three main parts: feeding part (integrated horns), quasi-optical system and radiating part. The radiating and input parts are placed in two different stacked substrates connected by an optimized quasi-optical system. In contrast to conventional pillbox antennas, the quasi-optical system is made by a pin-made...
A planar antenna fed by an over-sized hollow metal waveguide, whose top plane consists of slit array etched on a copper-coated dielectric substrate, has been proposed at 60GHz band. We tried to make a uniform aperture distribution on the slit array to improve the antenna efficiency. The gain was not however increased and the radiation pattern was degraded compared with that based on the Kirchhoff's...
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