FLEXIBLE WIRING BOARD
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United States of America Patent
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Issued Date -
Jan 26, 2017
app pub date -
Jul 15, 2016
filing date -
Jul 22, 2015
priority date (Note) -
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Abstract
A flexible wiring board including a base, at least one cover, a signal conductor, and a ground conductor. The base is an elongate flexible dielectric including first and second lengthwise portions. The first portion has opposed faces in the thickness direction. The cover, dielectric being lower in permittivity than the base, is fixedly cover at least one of the faces. The signal and ground conductors at the base extend in parallel with and in spaced relation to each other. The conductors each include a first portion covered by the cover and a second portion not covered by the cover. A part of the second portion of the ground conductor situated in a second region of the second portion of the base is smaller in area than a part of the first portion of the ground conductor situated in a first region of the first portion of the base, the first region being equal in area to the second region.
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