WO2005029695A1 - 増幅器 - Google Patents
増幅器 Download PDFInfo
- Publication number
- WO2005029695A1 WO2005029695A1 PCT/JP2004/014038 JP2004014038W WO2005029695A1 WO 2005029695 A1 WO2005029695 A1 WO 2005029695A1 JP 2004014038 W JP2004014038 W JP 2004014038W WO 2005029695 A1 WO2005029695 A1 WO 2005029695A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- amplifier
- linear
- carrier
- package
- peak
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000003321 amplification Effects 0.000 abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 4
- 230000005669 field effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 1
- 210000003323 beak Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
- H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
- H03F1/07—Doherty-type amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
- H03F3/602—Combinations of several amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/255—Amplifier input adaptation especially for transmission line coupling purposes, e.g. impedance adaptation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/423—Amplifier output adaptation especially for transmission line coupling purposes, e.g. impedance adaptation
Definitions
- the present invention relates to an amplifier, and more particularly to an amplifier that performs amplification by using a linear amplifier and a nonlinear amplifier together.
- Power amplifiers used in wireless communication systems require linearity and high efficiency.
- recent multi-level digital modulation communication systems often handle signals whose average amplitude and maximum amplitude differ greatly from each other.
- the amplifier When amplifying such a signal with a conventional power amplifier, the amplifier is set to an operating point that can amplify the signal to the maximum amplitude without distorting the signal. For this reason, there was little time to operate near the saturation output where relatively high efficiency could be maintained, and the efficiency of the amplifier was generally low.
- Doherty amplifier The basic configuration of a Doherty amplifier is already known to those skilled in the art (WH Doherty, A New Hih Efficiency Power Amplifier for Modulated Waves ", 1936 Proc. Of IRE, Vol. 24. , No. 9, pp1163-1182 and Steve's C. Cripps (Steve G. Cnpps), Advanced Techniques in RF Power Amp I ifers, Artech House 2002, pp33-56).
- FIG. 4 is a configuration diagram of an example of a conventional Doherty amplifier.
- a conventional Doherty amplifier includes a carrier amplifier 21 that constantly performs signal amplification and a peak amplifier 22 that operates only at high power output (sometimes referred to as an “auxiliary amplifier, In the present invention, “the peak amplifier J is unified”, a combiner 23 that combines and outputs the outputs of the carrier amplifier 21 and the peak amplifier 22, and an input signal that is the carrier amplifier 21 side and the peak amplifier 22. And a splitter 24.
- the carrier amplifier 21 is housed in one package 25, and the peak amplifier 22 is housed in a different package 26. ing.
- the carrier amplifier 21 an amplifier which is normally biased to class AB or class B is used.
- the beak amplifier 22 is normally used with a class C bias so that it operates only when the signal power is high.
- the combiner 23 that combines the outputs of the carrier amplifier 21 and the peak amplifier 22 is composed of a transformer, an impedance converter, and the like.When handling signals in the microwave band or the like, a transmission line of 14 wavelengths is usually used. It is composed of The input splitter 24 is a transmission line of 14 wavelengths so that the phase relationship between the output signals of the peak amplifier 22 and the carrier amplifier 21 can be combined in phase at the signal combining point of the combiner 23. And 90 ° hybrid circuit.
- the carrier amplifier 21 and the peak amplifier 22 which are the components of such a Doherty amplifier are amplifying elements that have been packaged separately.
- each of the carrier amplifier 21 and the peak amplifier 22 was configured using two MOS type FET semiconductor devices called MRF183 (field effect transistor of Motor Low Line Corporation).
- each amplifier output is connected to the signal synthesis point.
- the length of the transmission line is long, the transmission loss increases, and the efficiency of the entire amplifier is reduced.
- the configuration was disadvantageous for reducing equipment costs.
- an object of the present invention is to provide an amplifier capable of reducing the size of a device, reducing transmission loss, and increasing efficiency. Disclosure of the invention
- the present invention provides a splitter for splitting an input signal into two, one or more linear amplifiers to which one signal from the splitter is input, and the other from the splitter.
- An amplifier including one or a plurality of nonlinear amplifiers to which the signal of the above is input, and a combiner that combines the output signals from the linear amplifier and the nonlinear amplifier, wherein the amplifier is built in one package.
- Each of a predetermined number of transistors among the plurality of transistors is used as the linear amplifier, and each of the other transistors is used as the non-linear amplifier.
- FIG. 1 is a configuration diagram of an example of the amplifier according to the present invention.
- FIG. 2 is an external view of a field-effect transistor (MRF5P2111800).
- FIG. 3 is an external view of a field-effect transistor (MRF2190).
- FIG. 4 is a configuration diagram of an example of a conventional Doherty amplifier. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a configuration diagram of an example of the ⁇ device according to the present invention.
- an amplifier according to the present invention includes a carrier amplifier 21 that constantly performs a signal amplification operation, a peak amplifier 22 that operates only at the time of high power output, a carrier amplifier 21, and a peak amplifier.
- a combiner 23 for combining and outputting the outputs of 2 and a divider 24 for distributing an input signal to the carrier amplifier 21 and the peak amplifier 22 c also includes a carrier amplifier 21 and a peak amplifier 22 is contained in one package 1 (one package transistor). This amplifier amplifies the signal to be amplified input from the input terminal to a desired power.
- the carrier amplifier 21 an amplifier biased to class AB or class B is usually used.
- the peak amplifier 22 is normally used with a class C bias so that it operates only when the signal power is high.
- the combiner 23 that combines the outputs of the carrier amplifier 21 and the peak amplifier 22 is composed of a transformer, an impedance converter, and the like. It is composed of railway tracks.
- the input distributor 24 is a 1Z4 wavelength transmission line for allowing the phase relationship between the output signals of the peak amplifier 22 and the carrier amplifier 21 to be combined in phase at the signal combining point of the combiner 23. And 90 ° hybrid circuit.
- a field-effect transistor is described as a transistor, but the transistor is not limited to this, and may be constituted by another element having the same function such as a bipolar transistor. Further, other embodiments such as the distributor 24 and the synthesizer 23 in the above-mentioned embodiment are well known, and since they are not directly related to the present invention, detailed description thereof will be omitted.
- the carrier amplifier and the peak amplifier in the conventional duty amplifier have been composed of transistors in separate packages.
- an equivalent amplifier can be constituted by a transistor in one package, so that when a donation amplifier having an equivalent saturation output is constituted, a reduction in mounting area and cost can be achieved. It has the effect of being able to.
- the Doherty amplifier has an effect that higher efficiency can be obtained as compared with a normal class A or class AB linear amplifier. For this reason, when the Doherty amplifier of the present invention is compared with the case where a push-pull amplifier or a balance amplifier is configured with a class A, class AB, class B, or other linear amplifier using the same transistor, the same performance is obtained. Another advantage is that a high-efficiency amplifier can be obtained without increasing the size.
- Fig. 2 is an external view of a field-effect transistor (MRF5P21180), and Fig. 3 is an external view of a field-effect transistor (MRF21090).
- Figure 2 shows a field-effect transistor having two gate electrodes 12a and 12b and two drain electrodes 13a and 13b on a package (flange) 11.
- FIG. 3 shows a field effect transistor having one gate electrode 15 and one drain electrode 16 in a package (flange) 14.
- the external dimensions of the field-effect transistor (MRF 21 090) shown in Fig. 3 excluding the electrodes are approximately 34 mm x 13.8 mm per element, and the minimum mounting area of the transistor is two pieces of this size. A minute, about 9.4 square centimeters is needed.
- an 18 OW Doherty amplifier is Consider the case of using an effect transistor.
- MRF5P2118180 manufactured by Motoguchi One Line Corporation (see Fig. 2).
- the external dimensions of the transistor excluding the electrode portion are about 41 mm ⁇ 10 mm, and the mounting area is about 4.1 cm 2.
- the circuit mounting area can be reduced, the line length of the circuit that combines the output of the carrier amplifier and the output of the peak amplifier can be particularly reduced. That is, the signal transmission loss can be reduced, and as a result, the efficiency as a Doherty amplifier can be improved.
- the transmission line length could be reduced sufficiently by about 70% (1 Z ⁇ ), and the corresponding loss could be reduced.
- the line length can be reduced by about 2 O mm in the 2 GHz band. This is equivalent to a reduction of about 0.1 dB (2%) in the transmission loss of a general glass epoxy board, and in particular, about 4 W when trying to obtain 180 W of power at the amplifier output. Can be reduced.
- the present invention uses the same element as a Doherty amplifier even when compared with the case where the same 180 W amplifier is configured by a general push-pull type or balanced linear amplifier such as class A or B. Therefore, it is possible to greatly improve the efficiency of the amplifier.
- the basic configuration is as described above, but the peak amplifier and the carrier are formed by using an element having three or more transistors in one package. It is also possible to construct a so-called extended Doherty amplifier in which the power distribution ratios of the amplifiers are not equal.
- extended Doherty amplifier composed of a total of N carrier amplifiers and peak amplifiers is described in the aforementioned literature (Youngoo Yang).
- the Yo I Do dilated Doherty further course c it can also easily apply the present invention to an amplifier, a peak amplifier and a carrier amplifier the present invention is also applicable to modification, such as Doherty amplifiers made up of multi-stage amplifier Obviously, it is easily applicable. Industrial applicability
- the carrier amplifier and the peak amplifier are constituted by a single package transistor, so that the Doherty amplifier can be miniaturized.
- the carrier amplifier and the peak amplifier are composed of one package of transistors and miniaturized, the transmission loss of the circuit that combines the outputs of the carrier amplifier and the peak amplifier can be reduced, and the efficiency as an amplifier improves.
- the Doherty amplifier is composed of one package transistor, higher efficiency can be achieved compared to the case where a conventional class A or AB class amplifier is composed of the same one package transistor.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
- Microwave Amplifiers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2004800266391A CN1853343B (zh) | 2003-09-17 | 2004-09-17 | 放大器 |
EP04773418.1A EP1667320B1 (en) | 2003-09-17 | 2004-09-17 | Amplifier |
JP2005514134A JPWO2005029695A1 (ja) | 2003-09-17 | 2004-09-17 | 増幅器 |
US10/572,065 US7453320B2 (en) | 2003-09-17 | 2004-09-17 | Amplifier |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-323836 | 2003-09-17 | ||
JP2003323836 | 2003-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005029695A1 true WO2005029695A1 (ja) | 2005-03-31 |
Family
ID=34372734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/014038 WO2005029695A1 (ja) | 2003-09-17 | 2004-09-17 | 増幅器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7453320B2 (ja) |
EP (1) | EP1667320B1 (ja) |
JP (2) | JPWO2005029695A1 (ja) |
KR (1) | KR100830527B1 (ja) |
CN (1) | CN1853343B (ja) |
WO (1) | WO2005029695A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006333201A (ja) * | 2005-05-27 | 2006-12-07 | Nec Electronics Corp | ドハティ型増幅器 |
JP2007006450A (ja) * | 2005-05-23 | 2007-01-11 | Hitachi Kokusai Electric Inc | 増幅装置 |
JP2008124715A (ja) * | 2006-11-10 | 2008-05-29 | Nec Corp | 高周波電力増幅器 |
JPWO2015114698A1 (ja) * | 2014-01-31 | 2017-03-23 | 日本電気株式会社 | トランジスタパッケージ、それを備えた増幅回路、及び、トランジスタの構成方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007295329A (ja) * | 2006-04-26 | 2007-11-08 | Nec Corp | 増幅器 |
EP2191567A1 (en) * | 2007-09-03 | 2010-06-02 | Nxp B.V. | Multi-way doherty amplifier |
EP2905895A1 (en) * | 2009-09-28 | 2015-08-12 | NEC Corporation | Doherty amplifier |
EP2393201A1 (en) | 2010-06-02 | 2011-12-07 | Nxp B.V. | Two stage doherty amplifier |
US9667198B2 (en) | 2013-03-26 | 2017-05-30 | Nec Corporation | Power amplifier |
JP2015002538A (ja) * | 2013-06-18 | 2015-01-05 | 富士通株式会社 | 増幅装置 |
KR102225751B1 (ko) * | 2015-12-28 | 2021-03-10 | 한국전자기술연구원 | GaN FET를 이용한 펄스드 레이더용 200W급 전력증폭기 |
JP2021061577A (ja) * | 2019-10-09 | 2021-04-15 | 株式会社村田製作所 | 高周波モジュールおよび通信装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10513631A (ja) * | 1995-11-30 | 1998-12-22 | モトローラ・インコーポレイテッド | 増幅回路および増幅回路の調整方法 |
JP2002076802A (ja) * | 2000-08-31 | 2002-03-15 | Mitsubishi Electric Corp | マイクロ波帯用送受信装置及びそれに用いる半導体増幅器 |
WO2002056461A1 (fr) * | 2001-01-10 | 2002-07-18 | Mitsubishi Denki Kabushiki Kaisha | Dispositif a semi-conducteurs a haute frequence |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH021177A (ja) * | 1988-06-09 | 1990-01-05 | Matsushita Electron Corp | 半導体装置 |
JPH0270516A (ja) * | 1988-09-06 | 1990-03-09 | Mazda Motor Corp | 車両のサスペンション装置 |
US5757229A (en) * | 1996-06-28 | 1998-05-26 | Motorola, Inc. | Bias circuit for a power amplifier |
US5994965A (en) | 1998-04-03 | 1999-11-30 | Cbs Corporation | Silicon carbide high frequency high power amplifier |
JP2000244264A (ja) * | 1999-02-24 | 2000-09-08 | Hitachi Ltd | 高周波電力増幅装置 |
JP3508835B2 (ja) | 1999-05-12 | 2004-03-22 | 株式会社ケンウッド | 複数周波数帯域増幅回路 |
US6262629B1 (en) | 1999-07-06 | 2001-07-17 | Motorola, Inc. | High efficiency power amplifier having reduced output matching networks for use in portable devices |
AU2003216218A1 (en) * | 2002-02-14 | 2003-09-04 | Powerwave Technologies, Inc. | Deed forward rf power amplifier with high efficiency main amplifier and highly linear error amplifier |
EP1532731B1 (en) * | 2002-08-19 | 2011-09-21 | Nxp B.V. | High power doherty amplifier |
US6853244B2 (en) * | 2003-06-24 | 2005-02-08 | Northrop Grumman Corproation | Multi-mode multi-amplifier architecture |
KR20050031663A (ko) * | 2003-09-30 | 2005-04-06 | 광운대학교 산학협력단 | 도허티 전력 증폭 장치 |
JP2005210224A (ja) * | 2004-01-20 | 2005-08-04 | Hitachi Kokusai Electric Inc | ドハティ型増幅器 |
WO2005124994A1 (ja) * | 2004-06-18 | 2005-12-29 | Mitsubishi Denki Kabushiki Kaisha | 高効率増幅器 |
JP4715994B2 (ja) * | 2004-08-26 | 2011-07-06 | 日本電気株式会社 | ドハティ増幅器並列運転回路 |
JP2006157900A (ja) * | 2004-11-05 | 2006-06-15 | Hitachi Kokusai Electric Inc | 増幅器 |
-
2004
- 2004-09-17 JP JP2005514134A patent/JPWO2005029695A1/ja active Pending
- 2004-09-17 US US10/572,065 patent/US7453320B2/en active Active
- 2004-09-17 KR KR1020067004366A patent/KR100830527B1/ko not_active IP Right Cessation
- 2004-09-17 WO PCT/JP2004/014038 patent/WO2005029695A1/ja active Application Filing
- 2004-09-17 CN CN2004800266391A patent/CN1853343B/zh active Active
- 2004-09-17 EP EP04773418.1A patent/EP1667320B1/en not_active Expired - Fee Related
-
2008
- 2008-09-19 JP JP2008241500A patent/JP2008306771A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10513631A (ja) * | 1995-11-30 | 1998-12-22 | モトローラ・インコーポレイテッド | 増幅回路および増幅回路の調整方法 |
JP2002076802A (ja) * | 2000-08-31 | 2002-03-15 | Mitsubishi Electric Corp | マイクロ波帯用送受信装置及びそれに用いる半導体増幅器 |
WO2002056461A1 (fr) * | 2001-01-10 | 2002-07-18 | Mitsubishi Denki Kabushiki Kaisha | Dispositif a semi-conducteurs a haute frequence |
Non-Patent Citations (1)
Title |
---|
See also references of EP1667320A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007006450A (ja) * | 2005-05-23 | 2007-01-11 | Hitachi Kokusai Electric Inc | 増幅装置 |
JP2006333201A (ja) * | 2005-05-27 | 2006-12-07 | Nec Electronics Corp | ドハティ型増幅器 |
JP2008124715A (ja) * | 2006-11-10 | 2008-05-29 | Nec Corp | 高周波電力増幅器 |
JPWO2015114698A1 (ja) * | 2014-01-31 | 2017-03-23 | 日本電気株式会社 | トランジスタパッケージ、それを備えた増幅回路、及び、トランジスタの構成方法 |
US9853605B2 (en) | 2014-01-31 | 2017-12-26 | Nec Corporation | Transistor package, amplification circuit including the same, and method of forming transistor |
Also Published As
Publication number | Publication date |
---|---|
US20070103237A1 (en) | 2007-05-10 |
CN1853343A (zh) | 2006-10-25 |
EP1667320A4 (en) | 2007-08-01 |
KR100830527B1 (ko) | 2008-05-21 |
KR20060035801A (ko) | 2006-04-26 |
EP1667320B1 (en) | 2015-04-29 |
CN1853343B (zh) | 2012-01-11 |
US7453320B2 (en) | 2008-11-18 |
EP1667320A1 (en) | 2006-06-07 |
JPWO2005029695A1 (ja) | 2006-11-30 |
JP2008306771A (ja) | 2008-12-18 |
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