JP2004072548A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2004072548A5 JP2004072548A5 JP2002230754A JP2002230754A JP2004072548A5 JP 2004072548 A5 JP2004072548 A5 JP 2004072548A5 JP 2002230754 A JP2002230754 A JP 2002230754A JP 2002230754 A JP2002230754 A JP 2002230754A JP 2004072548 A5 JP2004072548 A5 JP 2004072548A5
- Authority
- JP
- Japan
- Prior art keywords
- matching circuit
- amplifier
- frequency amplifier
- output
- matching
- 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
Links
Claims (6)
前記増幅器の出力に接続された第1の整合回路と、
前記第1の整合回路の出力に接続されたスイッチと、
前記スイッチに接続された複数の整合回路とを具備して成り、
前記スイッチのオン・オフ動作により前記第1の整合回路の出力信号が前記複数の整合回路のいずれか1つに入力されることを特徴とする高周波増幅器。An amplifier that amplifies and outputs the signal;
A first matching circuit connected to the output of the amplifier;
A switch connected to an output of the first matching circuit,
A plurality of matching circuits connected to the switch ,
High-frequency amplifier, wherein the output signal of the first matching circuit by on-off operation of the switch is input to any one of the plurality of matching circuits.
前記第1の整合回路の出力インピーダンスは５０Ωより大きく２００Ω以下であることを特徴とする高周波増幅器。In claim 1 ,
Wherein the first output impedance matching circuit high-frequency amplifier, characterized in that at most larger 200 Omega than 50 Omega.
前記増幅器の出力に接続された第１の整合回路と、
前記第１の整合回路の出力に並列に接続された複数の整合回路とを具備する高周波増幅器であって、
前記高周波増幅器の動作周波数帯、または、動作通信システムに応じて、前記第１の整合回路の出力信号は前記複数の整合回路のうちいずれか１つの整合回路に入力され、前記第１の整合回路の出力信号は、前記複数の整合回路のうちの前記１つの整合回路以外の整合回路の入力において反射され、ほとんど入力されないことを特徴とする高周波増幅器。An amplifier that amplifies and outputs the signal;
A first matching circuit connected to the output of the amplifier;
A high frequency amplifier comprising a plurality of matching circuits connected in parallel to the output of the first matching circuit,
The operating frequency band of the high frequency amplifier, or, depending on the operation the communication system, the output signal of the first matching circuit is inputted to any one of the matching circuits of the plurality of matching circuits, said first matching circuit the output signal, the plurality of which said one input odor matching circuits other than the matching circuit of the matching circuit of soldering Isa, high-frequency amplifier, characterized in that hardly entered.
前記第1の整合回路の出力インピーダンスは５０Ωより大きく２００Ω以下であることを特徴とする高周波増幅器。In claim 3 ,
Wherein the first output impedance matching circuit high-frequency amplifier, characterized in that at most larger 200 Omega than 50 Omega.
前記スイッチは、PIN ダイオード、 FET スイッチ、または機械的スイッチのいずれかであることを特徴とする高周波増幅器。In claim 1 or 2,
The high-frequency amplifier, wherein the switch is any one of a PIN diode, a FET switch, and a mechanical switch.
前記増幅器は、前記高周波増幅器の動作周波数帯、または、動作通信システムに応じてその特性が変わるよう制御されることを特徴とする高周波増幅器。In any of claims 1 to 5 ,
The high-frequency amplifier is controlled such that the characteristics thereof change according to an operating frequency band of the high-frequency amplifier or an operating communication system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002230754A JP2004072548A (en) | 2002-08-08 | 2002-08-08 | High frequency amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002230754A JP2004072548A (en) | 2002-08-08 | 2002-08-08 | High frequency amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004072548A JP2004072548A (en) | 2004-03-04 |
| JP2004072548A5 true JP2004072548A5 (en) | 2005-10-27 |
Family
ID=32016714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002230754A Pending JP2004072548A (en) | 2002-08-08 | 2002-08-08 | High frequency amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2004072548A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007281714A (en) * | 2006-04-04 | 2007-10-25 | Matsushita Electric Ind Co Ltd | Impedance conversion circuit and power amplifier employing the same |
| KR100751554B1 (en) | 2006-06-28 | 2007-08-23 | 엘지전자 주식회사 | A power amplifier module for a dual band mobile telecommunication device and the method thereof |
| JP2008288769A (en) * | 2007-05-16 | 2008-11-27 | Panasonic Corp | High frequency circuit, semiconductor device, and high frequency power amplifier |
| JP2011135282A (en) * | 2009-12-24 | 2011-07-07 | Tdk Corp | Power amplifier circuit |
| JP2011166363A (en) * | 2010-02-08 | 2011-08-25 | Mitsubishi Electric Corp | Wide band high power amplifier |
| JP2012222702A (en) * | 2011-04-12 | 2012-11-12 | Kyocera Corp | Portable communication terminal, power amplification control method and program |
| WO2014132338A1 (en) * | 2013-02-26 | 2014-09-04 | 三菱電機株式会社 | Impedance tuner and power amplifying apparatus |
| WO2014132337A1 (en) * | 2013-02-26 | 2014-09-04 | 三菱電機株式会社 | Power amplifier and impedance tuner |
| US9166534B2 (en) * | 2013-12-17 | 2015-10-20 | Qualcomm Incorporated | Tunable loadline |
| JP2015195449A (en) * | 2014-03-31 | 2015-11-05 | 三菱電機株式会社 | Multiband high frequency power amplifier |
| CN106506028A (en) * | 2016-09-28 | 2017-03-15 | 捷开通讯(深圳)有限公司 | A kind of antenna matching unit and communication equipment |
-
2002
- 2002-08-08 JP JP2002230754A patent/JP2004072548A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1605589A4 (en) | Matching circuit | |
| JP2004072548A5 (en) | ||
| ATE520141T1 (en) | ELECTRONIC DEVICE AND IMPEDANCE MATCHING METHOD THEREOF | |
| JP2001168647A5 (en) | ||
| DE60232230D1 (en) | RAINCHARMER AMPLIFIER WITH VARIABLE AMPLIFICATION FOR A WIRELESS TERMINAL | |
| ATE359687T1 (en) | AUDIO SIGNAL GENERATION | |
| WO2006121650A3 (en) | Power amplifier with an output matching network | |
| EP1604509A4 (en) | Load variation tolerant radio frequency (rf) amplifier | |
| EP0945977A3 (en) | Power amplifier | |
| JP2001102881A5 (en) | ||
| EP0949754A3 (en) | High-frequency power amplifier circuit and high-frequency power amplifier module | |
| TW200620812A (en) | Variable gain amplifier circuit | |
| JP2007329641A (en) | Frequency bandwidth switching amplifier | |
| SE9902629L (en) | Balunkrets | |
| WO2004047351A3 (en) | Radio frequency power amplifier adaptive bias control circuit | |
| EP1345322A4 (en) | Power amplifier and communication apparatus | |
| TW200612656A (en) | Dual-band power amplifier | |
| DE602005021293D1 (en) | Amplifier with high efficiency | |
| JP2003133434A5 (en) | ||
| SE9903497D0 (en) | Power amplifying transistors | |
| WO2004025828A3 (en) | Radio frequency power amplifier device | |
| WO2002071596A3 (en) | High-frequency amplifier circuit having a directly-connected bias circuit | |
| WO2002071601A3 (en) | Preamplifier circuit for a photodetector | |
| WO2003010884A1 (en) | Multistage amplifier and integrated circuit | |
| TW200505154A (en) | Mute circuit and BTL audio amplifier apparatus |