KR100709326B1 - 가변이득증폭기 - Google Patents
가변이득증폭기 Download PDFInfo
- Publication number
- KR100709326B1 KR100709326B1 KR1020060093448A KR20060093448A KR100709326B1 KR 100709326 B1 KR100709326 B1 KR 100709326B1 KR 1020060093448 A KR1020060093448 A KR 1020060093448A KR 20060093448 A KR20060093448 A KR 20060093448A KR 100709326 B1 KR100709326 B1 KR 100709326B1
- Authority
- KR
- South Korea
- Prior art keywords
- load
- variable gain
- bias
- amplifier
- gain 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements
- H03G1/0029—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements using field-effect transistors [FET]
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
Landscapes
- Control Of Amplification And Gain Control (AREA)
Abstract
Description
Claims (6)
- 증폭소자;상기 증폭소자로부터의 트랜스컨덕턴스를 조절하는 로드 임피던스가 생성되는 부하소자; 및,상기 부하소자의 게이트와 드레인 사이에 장착되어 상기 부하소자의 로드 임피던스를 조절하는 이득조절부;를 포함하는 것을 특징으로 하는 가변이득증폭기.
- 제 1 항에 있어서,상기 이득조절부는, 상호 병렬로 배치된 복수의 저항소자와, 상기 각 저항소자와 직렬로 연결되어 상기 각 저항소자가 배치된 전원라인을 쇼트 또는 오픈하는 스위칭소자를 포함하는 것을 특징으로 하는 가변이득증폭기.
- 제 2 항에 있어서,상기 각 저항소자는 상호 상이한 저항값을 가지며, 저항, 트랜지스터, MOSFET 중 어느 하나로 마련되는 것을 특징으로 하는 가변이득증폭기.
- 제 2 항에 있어서,상기 각 스위칭소자는 외부의 제어에 따라 온오프되며, 상기 각 스위칭소자의 턴온시 턴온된 스위칭소자에 연결된 상기 저항소자를 통해 상기 부하소자의 게 이트로 바이어스가 제공되는 것을 특징으로 하는 가변이득증폭기.
- 제 2 항에 있어서,상기 각 스위칭소자는 N MOSFET로 형성되고, 상기 부하소자는 P MOSFET으로 형성된 것을 특징으로 하는 가변이득증폭기.
- 제 2 항에 있어서,상기 증폭소자는 트랜지스터, N MOSFET, P MOSFET 중 어느 하나로 마련된 것을 특징으로 하는 가변이득증폭기.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060093448A KR100709326B1 (ko) | 2006-09-26 | 2006-09-26 | 가변이득증폭기 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060093448A KR100709326B1 (ko) | 2006-09-26 | 2006-09-26 | 가변이득증폭기 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100709326B1 true KR100709326B1 (ko) | 2007-04-20 |
Family
ID=38181797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020060093448A Expired - Fee Related KR100709326B1 (ko) | 2006-09-26 | 2006-09-26 | 가변이득증폭기 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100709326B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110784181A (zh) * | 2019-09-03 | 2020-02-11 | 海能达通信股份有限公司 | 一种提升功率动态范围的方法、功率放大器及发射机 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6424222B1 (en) | 2001-03-29 | 2002-07-23 | Gct Semiconductor, Inc. | Variable gain low noise amplifier for a wireless terminal |
JP2004128704A (ja) | 2002-09-30 | 2004-04-22 | Toshiba Corp | 増幅器及びこれを用いた無線通信装置 |
KR20060044106A (ko) * | 2004-11-11 | 2006-05-16 | 삼성전자주식회사 | 가변 이득 증폭기 |
-
2006
- 2006-09-26 KR KR1020060093448A patent/KR100709326B1/ko not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6424222B1 (en) | 2001-03-29 | 2002-07-23 | Gct Semiconductor, Inc. | Variable gain low noise amplifier for a wireless terminal |
JP2004128704A (ja) | 2002-09-30 | 2004-04-22 | Toshiba Corp | 増幅器及びこれを用いた無線通信装置 |
KR20060044106A (ko) * | 2004-11-11 | 2006-05-16 | 삼성전자주식회사 | 가변 이득 증폭기 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110784181A (zh) * | 2019-09-03 | 2020-02-11 | 海能达通信股份有限公司 | 一种提升功率动态范围的方法、功率放大器及发射机 |
CN110784181B (zh) * | 2019-09-03 | 2023-12-12 | 海能达通信股份有限公司 | 一种提升功率动态范围的方法、功率放大器及发射机 |
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