Radio-frequency amplifier circuit and control voltage setting method for radio-frequency amplifier circuit
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United States of America Patent
Stats
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Oct 25, 2016
Grant Date -
Feb 18, 2016
app pub date -
Oct 29, 2015
filing date -
May 17, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A radio-frequency amplifier circuit includes first and second FETs cascode-connected to each other. The gate of the first FET is connected to a radio-frequency input terminal, and the drain of the second FET is connected to a radio-frequency output terminal. The source of the first FET is connected to a ground, and the drain of the first FET and the source of the second FET are connected to each other. A drive voltage is applied to the drain of the second FET. A bias setting unit is connected to the gate of the second FET. The bias setting unit sets a second control voltage to be applied to the second FET so that a node voltage between the drain of the first FET and the source of the second FET will be substantially half of the drive voltage.
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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MURATA MANUFACTURING CO LTD | KYOTO JAPAN KYOTO |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Wakaki, Ken | Kyoto, JP | 9 | 3 |
# of filed Patents : 9 Total Citations : 3 |
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Patent Citation Ranking
- 1 Citation Count
- H03F Class
- 9.93 % this patent is cited more than
- 9 Age
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Oct 31, 2017 | I | Issuance | |
Oct 11, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Aug 25, 2016 | P | Published | |
May 04, 2016 | F | Filing | |
Sep 03, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BURCKARD, ANTOINE;REEL/FRAME:051065/0386 Owner name: NAGRAVISION S.A., SWITZERLAND Effective Date: Sep 03, 2007 |
Sep 13, 2006 | PD | Priority Date |

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