LUMPED ELEMENT RECTANGULAR WAVEGUIDE FILTER
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United States of America Patent
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Dec 1, 2016
app pub date -
Feb 10, 2014
filing date -
Feb 10, 2014
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Abstract
A resonator for use in a rectangular waveguide filter includes a first section of rectangular waveguide and a second section of rectangular waveguide that are arranged along a guide direction of the resonator and joined to each other to form the resonator. Walls of the second section of rectangular waveguide that extend in the guide direction are in a parallel relationship with respective walls of the first section of rectangular waveguide. A width of the first section of rectangular waveguide in a width direction is equal to a width of the second section of rectangular waveguide in the width direction so that the resonator has uniform width in the width direction. A height of the second section of rectangular waveguide in a height direction is smaller than a height of the first section of rectangular waveguide in the height direction.
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