JPH04256208A - 低雑音広帯域増幅器のための入力段 - Google Patents

低雑音広帯域増幅器のための入力段

Info

Publication number
JPH04256208A
JPH04256208A JP3208835A JP20883591A JPH04256208A JP H04256208 A JPH04256208 A JP H04256208A JP 3208835 A JP3208835 A JP 3208835A JP 20883591 A JP20883591 A JP 20883591A JP H04256208 A JPH04256208 A JP H04256208A
Authority
JP
Japan
Prior art keywords
noise
impedance
input stage
amplifier
input
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.)
Withdrawn
Application number
JP3208835A
Other languages
English (en)
Japanese (ja)
Inventor
Klaus Zametzer
クラウス　ツアメツツアー
Markus Vester
マルクス　フエスター
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Corp
Original Assignee
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of JPH04256208A publication Critical patent/JPH04256208A/ja
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several 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
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
JP3208835A 1990-07-30 1991-07-26 低雑音広帯域増幅器のための入力段 Withdrawn JPH04256208A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4024166A DE4024166C1 (enExample) 1990-07-30 1990-07-30
DE4024166.1 1990-07-30

Publications (1)

Publication Number Publication Date
JPH04256208A true JPH04256208A (ja) 1992-09-10

Family

ID=6411305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3208835A Withdrawn JPH04256208A (ja) 1990-07-30 1991-07-26 低雑音広帯域増幅器のための入力段

Country Status (3)

Country Link
US (1) US5159289A (enExample)
JP (1) JPH04256208A (enExample)
DE (1) DE4024166C1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010524377A (ja) * 2007-04-13 2010-07-15 ケンブリッジ シリコン ラジオ リミテッド 増幅器入力インピーダンスの制御

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5914640A (en) * 1996-02-29 1999-06-22 Texas Instruments Incorporated Method and system for matching the input impedance of an RF amplifier an antenna to impedance
JPH11102916A (ja) * 1997-09-29 1999-04-13 Nec Corp 半導体集積回路装置およびその設計方法
DE19946459B4 (de) * 1999-09-28 2004-01-08 Siemens Ag Rauscharme breitbandige Verstärkereinrichtung sowie Verwendung der Verstärkereinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1391783A (en) * 1971-06-04 1975-04-23 Redac Software Ltd Frequency-selective electrical circuit arrangements
JPS5228878A (en) * 1975-08-29 1977-03-04 Nippon Gakki Seizo Kk Transistor for small signal
JPS5249755A (en) * 1975-10-17 1977-04-21 Matsushita Electric Ind Co Ltd Operational amplifier circuit
JPS589410A (ja) * 1981-07-09 1983-01-19 Toshiba Corp 演算増幅器
FR2626377B1 (fr) * 1988-01-26 1990-06-01 Crouzet Sa Oscillateur nucleaire comprenant une sonde a resonance magnetique nucleaire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010524377A (ja) * 2007-04-13 2010-07-15 ケンブリッジ シリコン ラジオ リミテッド 増幅器入力インピーダンスの制御
US8314659B2 (en) 2007-04-13 2012-11-20 Cambridge Silicon Radio Limited Controlling amplifier input impedance

Also Published As

Publication number Publication date
DE4024166C1 (enExample) 1991-12-19
US5159289A (en) 1992-10-27

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Legal Events

Date Code Title Description
A300 Application deemed to be withdrawn because no request for examination was validly filed

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 19981008