JP2006005637A5 - - Google Patents

Download PDF

Info

Publication number
JP2006005637A5
JP2006005637A5 JP2004179620A JP2004179620A JP2006005637A5 JP 2006005637 A5 JP2006005637 A5 JP 2006005637A5 JP 2004179620 A JP2004179620 A JP 2004179620A JP 2004179620 A JP2004179620 A JP 2004179620A JP 2006005637 A5 JP2006005637 A5 JP 2006005637A5
Authority
JP
Japan
Prior art keywords
amplifier
matching circuit
switch
output
bias
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
JP2004179620A
Other languages
Japanese (ja)
Other versions
JP2006005637A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2004179620A priority Critical patent/JP2006005637A/en
Priority claimed from JP2004179620A external-priority patent/JP2006005637A/en
Publication of JP2006005637A publication Critical patent/JP2006005637A/en
Publication of JP2006005637A5 publication Critical patent/JP2006005637A5/ja
Pending legal-status Critical Current

Links

Claims (10)

スイッチを切り換えて利得を制御する可変利得増幅器において、
高周波信号を増幅する増幅器と、
バイアスを供給して前記増幅器の動作を動作状態または非動作状態に設定するバイアス供給回路と、
前記高周波信号が供給される入力端子と前記増幅器の入力端子間に接続された入力整合回路と、
前記増幅器の出力端子に接続された出力整合回路と、
前記増幅器の入力端子と出力端子間に接続されたスイッチと、
前記スイッチに接続され、前記バイアス供給回路から供給されたバイアスにより前記増幅器が非動作時に設定された時、前記スイッチを切り換えて前記入力整合回路と前記出力端子間のインピーダンスの整合をとる整合回路と、
を有する可変利得増幅器。 In the variable gain amplifier that controls the gain by switching the switch,
An amplifier for amplifying a high-frequency signal;
A bias supply circuit for supplying a bias to set the operation of the amplifier to an operating state or a non-operating state;
An input matching circuit connected between the input terminal of the input terminal amplifier the high frequency signal is supplied,
An output matching circuit connected to the output terminal of the amplifier;
A switch connected between an input terminal and an output terminal of the amplifier;
A matching circuit connected to the switch and switching the switch to match impedance between the input matching circuit and the output terminal when the amplifier is set in a non-operating state by a bias supplied from the bias supply circuit; ,
A variable gain amplifier. 前記スイッチは電界効果トランジスタを含み、前記増幅器はバイポーラトランジスタを含む
請求項１記載の可変利得増幅器。 The variable gain amplifier according to claim 1, wherein the switch includes a field effect transistor, and the amplifier includes a bipolar transistor. 前記整合回路はＬＰＦ構成のインピーダンス変換器を含む
請求項１記載の可変利得増幅器。 The variable gain amplifier according to claim 1, wherein the matching circuit includes an impedance converter having an LPF configuration. 前記供給バイアス回路からバイアスを供給し前記増幅器を非動作状態にした時、前記スイッチを切り換え、該スイッチを介して前記整合回路を動作させ、前記入力整合回路から入力された高周波信号は前記整合回路を介して前記出力整合回路に出力される
請求項１記載の可変利得増幅器。 When supplying bias from the supply bias circuit and the amplifier in a non-operating state, switches the switch to operate the matching circuit through the switch, the high frequency signal inputted from the input matching circuit is the matching The variable gain amplifier according to claim 1, wherein the variable gain amplifier is output to the output matching circuit via a circuit . 高周波信号が供給される入力端子に接続された入力整合回路と、
前記入力整合回路の出力が接続され、前記高周波信号を増幅する増幅器と、
前記増幅器の入力に接続され、該増幅器にバイアスを供給し、該増幅器を動作状態または非動作状態に設定するバイアス供給回路と、
前記増幅器の入力端子に接続され、前記高周波信号をバイパスさせる第１のスイッチと、
前記第１のスイッチの出力に接続された整合回路と、
前記整合回路の出力と前記増幅器の出力に接続され、前記第１のスイッチと並列的にオンまたはオフ動作する第２のスイッチと
を有する可変利得増幅器。 An input matching circuit connected to an input terminal to which a high-frequency signal is supplied; and
The output of the input matching circuit is connected, an amplifier for amplifying the RF signal,
A bias supply circuit connected to an input of the amplifier, supplying a bias to the amplifier, and setting the amplifier to an operating state or a non-operating state;
Is connected to the input terminals of the amplifier, a first switch to bypass the RF signal,
A matching circuit connected to the output of the first switch;
A variable gain amplifier having a second switch connected to the output of the matching circuit and the output of the amplifier and operating on or off in parallel with the first switch. 前記増幅器をバイポーラトランジスタまたは電界効果トランジスタで構成した
請求項５記載の可変利得増幅器。 The variable gain amplifier according to claim 5, wherein the amplifier is configured by a bipolar transistor or a field effect transistor. 前記第１と第２のスイッチを切り換え、前記バイアス供給回路から供給されたバイアスにより前記増幅器が非動作状態に設定された時、前記整合回路を動作させるようにした
請求項５記載の可変利得増幅器。 Said first and switches the second switch, the when the amplifier by bias supplied from the bias supply circuit is set to a non-operating state, the variable gain according to claim 5, wherein the matching circuit so as to operate amplifier. 高周波信号を増幅する増幅器と、
前記高周波信号が供給される入力端子と前記増幅器の入力端子間に接続された入力整合回路と、
前記増幅器の入力端子と第１の出力端子間に接続された第１と第２のスイッチと、
前記第１と第２のスイッチ間に接続された整合回路と、
前記増幅器の入力端子にバイアスを供給し、該増幅器を動作状態または非動作状態に設定するバイアス供給回路と、
前記増幅器の第１の出力端子と第１の基準電源間に接続された負荷回路と、
前記増幅器の第１の出力端子に接続され出力信号が取り出される出力整合回路と、
前記増幅器の第２の出力端子と第２の基準電源間に接続された直列帰還回路と
を有する可変利得増幅器。 An amplifier for amplifying a high-frequency signal;
An input matching circuit connected between the input terminal of the input terminal amplifier the high frequency signal is supplied,
First and second switches connected between an input terminal and a first output terminal of the amplifier ;
A matching circuit connected between the first and second switches;
A bias supply circuit for supplying a bias to an input terminal of the amplifier and setting the amplifier to an operating state or a non-operating state ;
A load circuit connected between a first output terminal of the amplifier and a first reference power supply;
An output matching circuit connected to the first output terminal of the amplifier to extract an output signal;
A variable gain amplifier comprising: a series feedback circuit connected between a second output terminal of the amplifier and a second reference power supply. 前記第１と第２のスイッチをｎ型ＭＯＳトランジスタで構成し、前記バイアス供給回路から供給されたバイアスにより前記増幅器を非動作状態に設定した時、該第１と第２のスイッチが導通する
請求項８記載の可変利得増幅器。 The first and second switches are composed of n-type MOS transistors, and the first and second switches are turned on when the amplifier is set in a non-operating state by a bias supplied from the bias supply circuit. Item 9. The variable gain amplifier according to Item 8 . 前記バイアス供給回路からバイアスを供給し前記増幅器を非動作状態にした時、前記スイッチを切り換え導通して、該スイッチを介して前記整合回路を動作させ、前記入力整合回路から入力された高周波信号を前記整合回路を介して前記出力整合回路に出力する
請求項８記載の可変利得増幅器。 When the bias is supplied from the bias supply circuit and the amplifier is in an inoperative state, the switch is turned on to operate the matching circuit via the switch, and the high-frequency signal input from the input matching circuit is 9. The variable gain amplifier according to claim 8 , wherein the variable gain amplifier outputs the output to the output matching circuit via the matching circuit .
JP2004179620A 2004-06-17 2004-06-17 Variable gain amplifier Pending JP2006005637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004179620A JP2006005637A (en) 2004-06-17 2004-06-17 Variable gain amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004179620A JP2006005637A (en) 2004-06-17 2004-06-17 Variable gain amplifier

Publications (2)

Publication Number Publication Date
JP2006005637A JP2006005637A (en) 2006-01-05
JP2006005637A5 true JP2006005637A5 (en) 2007-07-12

Family

ID=35773649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004179620A Pending JP2006005637A (en) 2004-06-17 2004-06-17 Variable gain amplifier

Country Status (1)

Country Link
JP (1) JP2006005637A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4896903B2 (en) * 2008-02-09 2012-03-14 新日本無線株式会社 amplifier
JP2016158176A (en) * 2015-02-25 2016-09-01 株式会社豊田中央研究所 Electromagnetic field variation sensor and mutual recognition system
CN108206679A (en) * 2016-12-20 2018-06-26 深圳市中兴微电子技术有限公司 A kind of radio-frequency power amplifier and its gain control circuit
KR102185059B1 (en) * 2018-08-17 2020-12-01 삼성전기주식회사 Amplifying device with improved isolation characteristics

Similar Documents

Publication Publication Date Title
US7486134B2 (en) High efficiency load insensitive power amplifier
KR100821197B1 (en) High efficient mixed mode power amplifier
TWI662787B (en) Multi-mode stacked amplifier
CN106817091B (en) Power amplifying circuit
JP2001168647A5 (en)
US7649413B2 (en) High-frequency power amplifier improved in size and cost
US10381990B2 (en) Dynamically configurable bias circuit for controlling gain expansion of multi-mode, single chain linear power amplifiers
WO2007109776A3 (en) Dynamic bias control in power amplifier
JP4024010B2 (en) Radio frequency power amplifier for battery-powered handset units in wireless communication systems
WO2019019494A1 (en) Bias circuit and power amplification circuit
JP5397307B2 (en) High frequency power amplifier
DE60142183D1 (en) HIGH FREQUENCY AMPLIFIER CIRCUIT WITH INDEPENDENT CONTROL OF CIRCULAR CURRENT AND VOLTAGE IMPEDANCE
Yamashita et al. A CMOS class-E power amplifier of 40-% PAE at 5 GHz for constant envelope modulation system
JP2017195536A (en) Power amplification module
US8704600B2 (en) Power amplifier
KR20160112156A (en) Power amplifier and method for controlling output power in power amplifier
TW201406057A (en) Cascode amplifier and amplifier circuit
JP2006005637A5 (en)
US6842072B1 (en) Power gain reduction circuit for power amplifiers
JP6384105B2 (en) Power amplifier
CN104704740B (en) Doherty power amplifier
KR100654644B1 (en) Power amplifier having optimized power added efficiencyPAE
Tsai et al. A K-band CMOS power amplifier with FET-type adaptive-bias circuit
US11811368B2 (en) Power amplifier circuit
CN211089599U (en) Power amplification module and communication terminal