JP2008078898A - 可変減衰回路 - Google Patents

可変減衰回路 Download PDF

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Publication number
JP2008078898A
JP2008078898A JP2006254515A JP2006254515A JP2008078898A JP 2008078898 A JP2008078898 A JP 2008078898A JP 2006254515 A JP2006254515 A JP 2006254515A JP 2006254515 A JP2006254515 A JP 2006254515A JP 2008078898 A JP2008078898 A JP 2008078898A
Authority
JP
Japan
Prior art keywords
signal
attenuation
fet
bias
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2006254515A
Other languages
English (en)
Japanese (ja)
Inventor
Takahito Miyazaki
崇仁 宮崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2006254515A priority Critical patent/JP2008078898A/ja
Priority to PCT/JP2007/068152 priority patent/WO2008035698A1/fr
Publication of JP2008078898A publication Critical patent/JP2008078898A/ja
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using FET type devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/24—Frequency-independent attenuators
    • H03H11/245—Frequency-independent attenuators using field-effect transistor

Landscapes

  • Networks Using Active Elements (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP2006254515A 2006-09-20 2006-09-20 可変減衰回路 Pending JP2008078898A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006254515A JP2008078898A (ja) 2006-09-20 2006-09-20 可変減衰回路
PCT/JP2007/068152 WO2008035698A1 (fr) 2006-09-20 2007-09-19 Circuit à atténuation variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006254515A JP2008078898A (ja) 2006-09-20 2006-09-20 可変減衰回路

Publications (1)

Publication Number Publication Date
JP2008078898A true JP2008078898A (ja) 2008-04-03

Family

ID=39200523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006254515A Pending JP2008078898A (ja) 2006-09-20 2006-09-20 可変減衰回路

Country Status (2)

Country Link
JP (1) JP2008078898A (fr)
WO (1) WO2008035698A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010118967A (ja) * 2008-11-13 2010-05-27 Asahi Kasei Electronics Co Ltd 電圧制御発振器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0689286B1 (fr) * 1994-06-24 2000-03-29 STMicroelectronics S.r.l. Circuit à capacités commutées à tension faible utilisant des amplificateurs opérationnels commutés avec excursion de tension maximalisée
JPH10261925A (ja) * 1997-03-17 1998-09-29 Toshiba Corp 高周波増幅器
JP3960115B2 (ja) * 2001-05-24 2007-08-15 松下電器産業株式会社 携帯用電力増幅器
JP3853612B2 (ja) * 2001-06-06 2006-12-06 松下電器産業株式会社 減衰器
JP2004207437A (ja) * 2002-12-25 2004-07-22 Nec Corp 接地スイッチ回路
JP3839421B2 (ja) * 2003-07-03 2006-11-01 松下電器産業株式会社 高周波増幅回路およびそれを用いた移動体通信端末
JP3860191B2 (ja) * 2005-01-05 2006-12-20 三菱電機株式会社 パルス変調回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010118967A (ja) * 2008-11-13 2010-05-27 Asahi Kasei Electronics Co Ltd 電圧制御発振器

Also Published As

Publication number Publication date
WO2008035698A1 (fr) 2008-03-27

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