Waveguide, antenna and vehicular radar apparatus
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United States of America Patent
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May 21, 2013
Grant Date -
Mar 4, 2010
app pub date -
Jan 16, 2009
filing date -
Aug 26, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A waveguide, that is improved in size, costs, manufacturing and in durability, has a base having a mounting surface, and a plate member held on the mounting surface of the base for defining a waveguide in cooperation with the base. The mounting surface of the base is a curved surface defined by a sweep of a flexure curve of the plate member when it is loaded along a straight line. The plate member is attached to the base in such a manner that the plate member is pressed against and curved along the mounting surface, and that the plate member has a curvature direction edge portion extending in a curvature direction which is a general extension of the flexure curve and a sweep direction edge portion extending in a direction of the sweep of the curve.
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