WO2008035396A1 - Appareil d'amplification de puissance - Google Patents
Appareil d'amplification de puissance Download PDFInfo
- Publication number
- WO2008035396A1 WO2008035396A1 PCT/JP2006/318517 JP2006318517W WO2008035396A1 WO 2008035396 A1 WO2008035396 A1 WO 2008035396A1 JP 2006318517 W JP2006318517 W JP 2006318517W WO 2008035396 A1 WO2008035396 A1 WO 2008035396A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- amplifier
- impedance
- power
- load
- output
- Prior art date
Links
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
- H03F1/0205—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
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
- H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
Definitions
- both the carrier amplifier 3 and the peak amplifier 8 operate to supply an output current to the load 11.
- the load 11 apparently converted to 25 ⁇ as described above is equally driven by the carrier amplifier 3 and the peak amplifier 8, so that the impedance viewed from the point a and the load 11 from the point B Both impedances are 50 ⁇ .
- the impedance of load 11 is 50 ⁇ .
- the 35 ⁇ third ⁇ 4 transmission line in series with the load required in the conventional Doherty amplifier is deleted, and the first ⁇ 4 transmission on the output side of the carrier amplifier is removed.
- the peak amplifier output matching circuit on the output side of the peak amplifier is optimized to match 100 ⁇ . As a result, it is possible to realize a power amplifying apparatus that is reduced in size by reducing one ⁇ 4 transmission line while maintaining the high efficiency characteristics and stable operation of the Doherty amplifier.
- FIG. 3 is an equivalent circuit of the main part of the Donotty / tee amplifier for explaining the operation of the power amplifying apparatus according to Embodiment 2 of the present invention.
- the peak amplifier 108 has
- the load impedance of the point a force on the carrier amplifier 103 side is also (n + 1) XZ, while the load impedance from the point B on the peak amplifier 108 side is The load impedance of the point C is ⁇ (n + l) / n ⁇ XZ.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Microwave Amplifiers (AREA)
Abstract
La présente invention concerne un appareil d'amplification de puissance dans lequel le nombre de lignes de transfert λ/4 constituant partiellement un amplificateur Doherty a été réduit. Dans cet appareil d'amplification de puissance (100), l'impédance caractéristique d'une première ligne de transfert λ/4 (105) qui constitue partiellement l'amplificateur Doherty du côté d'un amplificateur de porteuse (103) est configurée sur une valeur supérieure à l'impédance de sortie de ce dernier amplificateur (103). Lorsque l'impédance de sortie de l'amplificateur de porteuse (103) est par exemple configurée sur 50 Ω, l'impédance caractéristique de la première ligne de transfert λ/4 (105) est configurée pour être 50 × 21/21/2 ≈ 71 Ω. Par ailleurs, un circuit de correspondance de sortie de crête (109) du côté de la sortie d'un amplificateur de crête (108) est adapté pour correspondre à une impédance supérieure à une impédance de charge (Z). Le circuit de correspondance de sortie de l'amplificateur de crête (109) correspond par exemple à une impédance égale au double de l'impédance de charge (Z).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/318517 WO2008035396A1 (fr) | 2006-09-19 | 2006-09-19 | Appareil d'amplification de puissance |
JP2008535203A JPWO2008035396A1 (ja) | 2006-09-19 | 2006-09-19 | 電力増幅装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/318517 WO2008035396A1 (fr) | 2006-09-19 | 2006-09-19 | Appareil d'amplification de puissance |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008035396A1 true WO2008035396A1 (fr) | 2008-03-27 |
Family
ID=39200229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/318517 WO2008035396A1 (fr) | 2006-09-19 | 2006-09-19 | Appareil d'amplification de puissance |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPWO2008035396A1 (fr) |
WO (1) | WO2008035396A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102832886A (zh) * | 2011-06-17 | 2012-12-19 | 英飞凌科技股份有限公司 | 具有定阻抗型多工器的宽带多赫蒂放大器电路 |
WO2013133215A1 (fr) * | 2012-03-05 | 2013-09-12 | 国立大学法人 電気通信大学 | Circuit amplificateur doherty |
KR20140116439A (ko) * | 2011-12-29 | 2014-10-02 | 알까뗄 루슨트 | 대역폭 확장된 도허티 전력 증폭기 |
JP2022527051A (ja) * | 2019-03-28 | 2022-05-30 | ウルフスピード インコーポレイテッド | トランジスタ内負荷変調 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005086447A (ja) * | 2003-09-08 | 2005-03-31 | Shimada Phys & Chem Ind Co Ltd | 電力合成形増幅器 |
-
2006
- 2006-09-19 JP JP2008535203A patent/JPWO2008035396A1/ja active Pending
- 2006-09-19 WO PCT/JP2006/318517 patent/WO2008035396A1/fr active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005086447A (ja) * | 2003-09-08 | 2005-03-31 | Shimada Phys & Chem Ind Co Ltd | 電力合成形増幅器 |
Non-Patent Citations (2)
Title |
---|
HORIGUCHI K. ET AL.: "Kaso Open Stub o Mochiita OFDM 250W Kyu Doherty Zofukuki no Ko Koritsuka", 2006 NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU C-2-12, 8 March 2006 (2006-03-08), XP003021819 * |
TAKAYAMA Y. ET AL.: "Micro-Ha Doherty Zofukuki no Seikkeiho Oyobi SiMOSFET Denryoku Zofukuki", THE TRANSACTIONS OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. J87-C, no. 10, 1 October 2004 (2004-10-01), pages 745 - 753, XP003021820 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102832886A (zh) * | 2011-06-17 | 2012-12-19 | 英飞凌科技股份有限公司 | 具有定阻抗型多工器的宽带多赫蒂放大器电路 |
CN102832886B (zh) * | 2011-06-17 | 2015-05-13 | 英飞凌科技股份有限公司 | 具有定阻抗型多工器的宽带多赫蒂放大器电路 |
KR20140116439A (ko) * | 2011-12-29 | 2014-10-02 | 알까뗄 루슨트 | 대역폭 확장된 도허티 전력 증폭기 |
JP2015506615A (ja) * | 2011-12-29 | 2015-03-02 | アルカテル−ルーセント | 帯域幅が拡張されたドハティ電力増幅器 |
US9450543B2 (en) | 2011-12-29 | 2016-09-20 | Alcatel Lucent | Bandwidth-extended Doherty power amplifier |
KR101678753B1 (ko) * | 2011-12-29 | 2016-11-23 | 알까뗄 루슨트 | 대역폭 확장된 도허티 전력 증폭기 |
WO2013133215A1 (fr) * | 2012-03-05 | 2013-09-12 | 国立大学法人 電気通信大学 | Circuit amplificateur doherty |
JP2013187553A (ja) * | 2012-03-05 | 2013-09-19 | Univ Of Electro-Communications | ドハティ増幅回路 |
JP2022527051A (ja) * | 2019-03-28 | 2022-05-30 | ウルフスピード インコーポレイテッド | トランジスタ内負荷変調 |
JP7383041B2 (ja) | 2019-03-28 | 2023-11-17 | ウルフスピード インコーポレイテッド | トランジスタ内負荷変調 |
US12009788B2 (en) | 2019-03-28 | 2024-06-11 | Macom Technology Solutions Holdings, Inc. | In-transistor load modulation |
Also Published As
Publication number | Publication date |
---|---|
JPWO2008035396A1 (ja) | 2010-01-28 |
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