Antenna and communication apparatus
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United States of America Patent
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Feb 7, 2017
Grant Date -
Dec 25, 2014
app pub date -
May 29, 2014
filing date -
Jun 25, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides an antenna in which first and second conductors each having a first width are spirally arranged on first and second planes, respectively, such that a conductor-to-conductor distance is equal to a second width, and an inter ends of spirals of the first and second conductors are connected with a conductor. In this antenna, the direction in which the spiral of the first conductor runs from its outer end to its inter end and the direction in which the spiral of the second conductor runs from its inter end to its outer end correspond to each other, the first width is greater than or equal to the second width, and the first and second conductors are alternately arranged in at least a portion thereof as viewed in a radius direction from an axis of the spiral.
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