US Patent 7492238 Radio-frequency switching circuit and semiconductor device
Patent 7492238 was granted and assigned to Panasonic on February, 2009 by the United States Patent and Trademark Office.
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Patent abstract
A common terminal 500 is connected to drains of FETs 101 and 102 via a capacitor 400. FETs 111 to 114 are serially connected, and inserted between a source of the FET 101 and a terminal 501 via a capacitor 401. Similarly, each of: FETs 121 to 124; FETs 131 to 133; FETs 141 to 143; FETs 151 to 153; and FETs 161 to 163 is inserted between the source of the FET 101 or an FET 102 and a corresponding one of terminals 502 to 506. This configuration allows a stray capacitance value of a transmission/reception path to be reduced at the time of transmission/reception, thereby obtaining a favorable radio-frequency characteristic.
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US Patent 07492238 Radio-frequency switching circuit and semiconductor device US Patent 7492238 Radio-frequency switching circuit and semiconductor device
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Patent Number
0749223800
Patent Number
749223800
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074922380
Date of Patent
February 17, 2009
0Patent Application Number
115914620
Date Filed
November 2, 2006
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074922380
Date of Patent
February 17, 2009
0Patent Application Number
115914620
Date Filed
November 2, 2006
0Official Website
Patent Primary Examiner
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US Patent 07492238 Radio-frequency switching circuit and semiconductor device
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07492238
Date of patent
February 17, 2009
Patent application number
11591462
Date Filed
November 2, 2006
Patent primary examiner
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