JP2006311623A5 - - Google Patents

Download PDF

Info

Publication number
JP2006311623A5
JP2006311623A5 JP2006218988A JP2006218988A JP2006311623A5 JP 2006311623 A5 JP2006311623 A5 JP 2006311623A5 JP 2006218988 A JP2006218988 A JP 2006218988A JP 2006218988 A JP2006218988 A JP 2006218988A JP 2006311623 A5 JP2006311623 A5 JP 2006311623A5
Authority
JP
Japan
Prior art keywords
transistor
base
transistors
current
variable amplifier
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.)
Granted
Application number
JP2006218988A
Other languages
English (en)
Japanese (ja)
Other versions
JP4312779B2 (ja
JP2006311623A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2006218988A priority Critical patent/JP4312779B2/ja
Priority claimed from JP2006218988A external-priority patent/JP4312779B2/ja
Publication of JP2006311623A publication Critical patent/JP2006311623A/ja
Publication of JP2006311623A5 publication Critical patent/JP2006311623A5/ja
Application granted granted Critical
Publication of JP4312779B2 publication Critical patent/JP4312779B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

JP2006218988A 2006-08-10 2006-08-10 可変増幅器およびそれを用いた携帯無線端末 Expired - Fee Related JP4312779B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006218988A JP4312779B2 (ja) 2006-08-10 2006-08-10 可変増幅器およびそれを用いた携帯無線端末

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006218988A JP4312779B2 (ja) 2006-08-10 2006-08-10 可変増幅器およびそれを用いた携帯無線端末

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2003372674A Division JP4252423B2 (ja) 2003-10-31 2003-10-31 可変増幅器およびそれを用いた携帯無線端末

Publications (3)

Publication Number Publication Date
JP2006311623A JP2006311623A (ja) 2006-11-09
JP2006311623A5 true JP2006311623A5 (de) 2008-04-24
JP4312779B2 JP4312779B2 (ja) 2009-08-12

Family

ID=37477830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006218988A Expired - Fee Related JP4312779B2 (ja) 2006-08-10 2006-08-10 可変増幅器およびそれを用いた携帯無線端末

Country Status (1)

Country Link
JP (1) JP4312779B2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009110370A1 (ja) * 2008-03-04 2009-09-11 日本電気株式会社 利得可変増幅器
US8571510B2 (en) * 2008-08-18 2013-10-29 Qualcomm Incorporated High linearity low noise receiver with load switching
JP2015037286A (ja) * 2013-08-15 2015-02-23 旭化成エレクトロニクス株式会社 可変利得増幅器
JP2015037287A (ja) * 2013-08-15 2015-02-23 旭化成エレクトロニクス株式会社 バイアス電流制御回路

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3020511B2 (ja) * 1989-05-24 2000-03-15 株式会社日立製作所 無線受信器
JP3574546B2 (ja) * 1997-05-16 2004-10-06 日本電信電話株式会社 高周波可変利得増幅器
JP3570298B2 (ja) * 1999-01-19 2004-09-29 松下電器産業株式会社 可変利得増幅器
JP3952114B2 (ja) * 1999-07-27 2007-08-01 ソニー株式会社 可変利得アンプ
JP4094239B2 (ja) * 2001-02-19 2008-06-04 富士通株式会社 増幅器
JP3965284B2 (ja) * 2001-09-11 2007-08-29 株式会社ルネサステクノロジ 高周波増幅装置及び送受信装置
JPWO2003079542A1 (ja) * 2002-03-15 2005-07-21 三菱電機株式会社 マイクロ波回路

Similar Documents

Publication Publication Date Title
JP4956059B2 (ja) 可変利得増幅器
US6724259B2 (en) Variable gain amplifier
JP4354465B2 (ja) 可変利得増幅器及びこの可変利得増幅器を備えた通信装置
US7164318B2 (en) Continuous variable-gain low-noise amplifier
US5872475A (en) Variable attenuator
EP1753139B1 (de) Digital-Analog-Wandler mit programmierbarer Stromregelung
JP4902250B2 (ja) 可変利得増幅器
JP5523619B2 (ja) 可変利得増幅器
WO1999050956A1 (en) Wide-dynamic-range variable-gain amplifier
JP2003198290A (ja) 指数関数発生器及びそれを用いた可変利得増幅器
EP1708361A2 (de) Rauscharmer Verstärker und Differenzverstärker mit variablem Verstärkungsmodus
JP2007259409A (ja) 可変利得増幅器
JP4252423B2 (ja) 可変増幅器およびそれを用いた携帯無線端末
JP4312779B2 (ja) 可変増幅器およびそれを用いた携帯無線端末
JP2006311623A5 (de)
US20090027128A1 (en) Variable gain amplifier
JP2007013635A (ja) 可変利得増幅器及び差動増幅器
US6906595B2 (en) Variable gain current feedback amplifier
JP2008098771A (ja) 低雑音増幅器
GB2436651A (en) Variable gain low noise amplifier
US20060202752A1 (en) Controllable amplifier and its use
US7138867B2 (en) Balanced variable gain amplifier capable of achieving performance by low source voltage
US6693492B2 (en) Variable gain low-noise amplifier and method
JP3219346B2 (ja) 自動利得制御増幅器
US9407220B1 (en) Digitally controlled variable transductance stage for microwave mixers and amplifiers