Leaky wave antenna in AFSIW technology
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United States of America Patent
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Nov 29, 2022
Grant Date -
Jun 17, 2021
app pub date -
Dec 17, 2020
filing date -
Dec 17, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Leaky wave antenna of AFSIW structure comprising a top substrate layer and a bottom substrate layer sandwiching an intermediate layer comprising a longitudinal aperture of length L defining a waveguide and whose width W1 is delimited by two conductive lateral walls. The inner faces of the conductive lateral walls are coated with a layer of dielectric material of thickness w(z). The top layer has a longitudinal radiating slot of width Wf (z) facing the longitudinal aperture of the intermediate layer. The thickness w(z) of the dielectric coating varies along the longitudinal axis z according to a given law, defined so as to obtain variations along the axis z of the amplitude Alpha(z) and of the phase Beta(z) of the leaky wave of the guide.
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