JPS5516527A - Ultra-high frequency amplifier - Google Patents

Ultra-high frequency amplifier

Info

Publication number
JPS5516527A
JPS5516527A JP8876478A JP8876478A JPS5516527A JP S5516527 A JPS5516527 A JP S5516527A JP 8876478 A JP8876478 A JP 8876478A JP 8876478 A JP8876478 A JP 8876478A JP S5516527 A JPS5516527 A JP S5516527A
Authority
JP
Japan
Prior art keywords
amplifier
circuit
microwave
ultra
dual gate
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.)
Granted
Application number
JP8876478A
Other languages
Japanese (ja)
Other versions
JPS6139765B2 (en
Inventor
Yoichiro Takayama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8876478A priority Critical patent/JPS5516527A/en
Publication of JPS5516527A publication Critical patent/JPS5516527A/en
Publication of JPS6139765B2 publication Critical patent/JPS6139765B2/ja
Granted legal-status Critical Current

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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3205—Modifications of amplifiers to reduce non-linear distortion in field-effect transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0032—Circuit elements of oscillators including a device with a Schottky junction

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To improve distortion characteristics by compensating nonlinearity of a main amplifier in an ultra-high frequency amplifier which amplifies an ultra-high frequency signal including an amplitude-modulated component or several carriers. CONSTITUTION:Dotted-line part 11, indicating the microwave Schottky gate GaAs dual gate FET amplifier, constitutes the nonlinear compensator circuit. An amplitude-modulated microwave signal is inputted to input terminal 9; part of it is extracted by directional coupler 10 and envelope-detected and amplified by detection circuit 12 and great part of the microwave signal is sent to dual gate FET amplifier circuit 11. The envelop-detected and amplified signal is applied to 2nd gate 7 of dual gate FET being superposed on a direct-current bias voltage. The output of dual gate FET amplifier 11 is supplied to microwave FET amplifier circuit 13, the main amplifier, and a nonlinearly-compensated output signal is obtained from output terminal 14 of this circuit 13.
JP8876478A 1978-07-19 1978-07-19 Ultra-high frequency amplifier Granted JPS5516527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8876478A JPS5516527A (en) 1978-07-19 1978-07-19 Ultra-high frequency amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8876478A JPS5516527A (en) 1978-07-19 1978-07-19 Ultra-high frequency amplifier

Publications (2)

Publication Number Publication Date
JPS5516527A true JPS5516527A (en) 1980-02-05
JPS6139765B2 JPS6139765B2 (en) 1986-09-05

Family

ID=13951928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8876478A Granted JPS5516527A (en) 1978-07-19 1978-07-19 Ultra-high frequency amplifier

Country Status (1)

Country Link
JP (1) JPS5516527A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57114710U (en) * 1981-01-07 1982-07-16
JPS58156208A (en) * 1982-03-11 1983-09-17 Clarion Co Ltd Automatic linearity compensating circuit
JPS60157305A (en) * 1983-12-23 1985-08-17 アメリカン　テレフォン　アンド　テレグラフ　カムパニー Method and device for reducing distortion
JPS60173908A (en) * 1984-02-20 1985-09-07 Fujitsu Ltd Nonlinear distortion compensating circuit
FR2564260A1 (en) * 1984-05-09 1985-11-15 Rca Corp PREACCENTUATION CIRCUIT
JPH01276809A (en) * 1988-04-28 1989-11-07 Toshiba Corp Automatic gain control circuit
WO2009125555A1 (en) * 2008-04-08 2009-10-15 三菱電機株式会社 High-frequency amplifier

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57114710U (en) * 1981-01-07 1982-07-16
JPS58156208A (en) * 1982-03-11 1983-09-17 Clarion Co Ltd Automatic linearity compensating circuit
JPS60157305A (en) * 1983-12-23 1985-08-17 アメリカン　テレフォン　アンド　テレグラフ　カムパニー Method and device for reducing distortion
JPS60173908A (en) * 1984-02-20 1985-09-07 Fujitsu Ltd Nonlinear distortion compensating circuit
FR2564260A1 (en) * 1984-05-09 1985-11-15 Rca Corp PREACCENTUATION CIRCUIT
JPH01276809A (en) * 1988-04-28 1989-11-07 Toshiba Corp Automatic gain control circuit
WO2009125555A1 (en) * 2008-04-08 2009-10-15 三菱電機株式会社 High-frequency amplifier
KR101139087B1 (en) * 2008-04-08 2012-04-30 미쓰비시덴키 가부시키가이샤 High-frequency amplifier
JP5165050B2 (en) * 2008-04-08 2013-03-21 三菱電機株式会社 High frequency amplifier

Also Published As

Publication number Publication date
JPS6139765B2 (en) 1986-09-05

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