US Patent 7532172 Differentially-fed variable directivity slot antenna
Patent 7532172 was granted and assigned to Panasonic on May, 2009 by the United States Patent and Trademark Office.
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Patent Inventor Names
Hiroshi Kanno0
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Patent abstract
With a differential feed line 103c, open-ended slot resonators 601, 603, 605, and 607 are allowed to operate in pair, a slot length of each slot resonator corresponding to a ¼ effective wavelength during operation. Slot resonators which are excited out-of-phase with an equal amplitude are allowed to appear within the circuitry. Thus, positioning condition of the open end points of the selective radiation portions 601b, 601c, 603b, 603c, 605b, and 607b in the respective slot resonators is dynamically switched.
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US Patent 07532172 Differentially-fed variable directivity slot antenna US Patent 7532172 Differentially-fed variable directivity slot antenna
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Patent Number
075321720
Patent Number
75321720
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Current Assignee
Patent Jurisdiction
Patent Number
075321720
Date of Patent
May 12, 2009
0Patent Application Number
121470910
Date Filed
June 26, 2008
0Official Website
Patent Primary Examiner
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US Patent 07532172 Differentially-fed variable directivity slot antenna
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Is a
Current assignee
Patent jurisdiction
Patent number
07532172
Date of patent
May 12, 2009
Patent application number
12147091
Date Filed
June 26, 2008
Patent primary examiner
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