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JPS56165410A - High frequency transistor amplifying circuit - Google Patents

High frequency transistor amplifying circuit

Info

Publication number
JPS56165410A
JPS56165410A JP6901180A JP6901180A JPS56165410A JP S56165410 A JPS56165410 A JP S56165410A JP 6901180 A JP6901180 A JP 6901180A JP 6901180 A JP6901180 A JP 6901180A JP S56165410 A JPS56165410 A JP S56165410A
Authority
JP
Japan
Prior art keywords
load
amplifier
output
high frequency
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.)
Granted
Application number
JP6901180A
Other languages
Japanese (ja)
Other versions
JPH0251287B2 (en
Inventor
Gunkichi Sato
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP6901180A priority Critical patent/JPS56165410A/en
Publication of JPS56165410A publication Critical patent/JPS56165410A/en
Publication of JPH0251287B2 publication Critical patent/JPH0251287B2/ja
Granted 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
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To ensure an optional variation for the characteristics between the input electric power and the output phase, by connecting a directional coupler having an impedance control circuit to the input and output sides of a high frequency transistor amplifier. CONSTITUTION:A directional coupler 2 incorporating an impedance control circuit 3 and a matched load 5 is connected to either one of the input and output sides of a high frequency transistor amplifier 4. The greater part of the output of the amplifier 4 is supplied to a load 10, and a part of this output is applied to the circuit 3. The greater part of electric power reflected by the the circuit 3 is absorbed to the load 5, but a part of the reflected power is sent back again to the amplifier 4. This means that the load impedance characteristics viewed from the amplifier 4 has changed, but the impedance has no change when the amplifier 4 is viewed from the load 10. So is with the input side. Thus the load impedance characteristics is controlled freely by the circuit 3 and according to the coupling degree of the coupler 2. As a result, an optional variation is possible for the characteristics between the input electric power and the output phase.
JP6901180A 1980-05-26 1980-05-26 High frequency transistor amplifying circuit Granted JPS56165410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6901180A JPS56165410A (en) 1980-05-26 1980-05-26 High frequency transistor amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6901180A JPS56165410A (en) 1980-05-26 1980-05-26 High frequency transistor amplifying circuit

Publications (2)

Publication Number Publication Date
JPS56165410A true JPS56165410A (en) 1981-12-19
JPH0251287B2 JPH0251287B2 (en) 1990-11-07

Family

ID=13390215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6901180A Granted JPS56165410A (en) 1980-05-26 1980-05-26 High frequency transistor amplifying circuit

Country Status (1)

Country Link
JP (1) JPS56165410A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002076972A (en) * 2000-06-28 2002-03-15 Trw Inc Receiver for wireless telecommunication system containing low-noise amplifier and frequency down converter
JP2002076970A (en) * 2000-06-28 2002-03-15 Trw Inc Multi-carrier receiver for wireless telecommunication system
JP2004503160A (en) * 2000-07-07 2004-01-29 テレフオンアクチーボラゲツト　エル　エム　エリクソン Transmitter with composite amplifier
JP2017516258A (en) * 2014-03-24 2017-06-15 アドバンスト・エナジー・インダストリーズ・インコーポレイテッドＡｄｖａｎｃｅｄ Ｅｎｅｒｇｙ Ｉｎｄｕｓｔｒｉｅｓ， Ｉｎｃ． System and method for high frequency generator source impedance control
US10224184B2 (en) 2014-03-24 2019-03-05 Aes Global Holdings, Pte. Ltd System and method for control of high efficiency generator source impedance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201817747D0 (en) * 2018-10-31 2018-12-19 Leonardo Mw Ltd A radio frequency power amplifier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002076972A (en) * 2000-06-28 2002-03-15 Trw Inc Receiver for wireless telecommunication system containing low-noise amplifier and frequency down converter
JP2002076970A (en) * 2000-06-28 2002-03-15 Trw Inc Multi-carrier receiver for wireless telecommunication system
JP2004503160A (en) * 2000-07-07 2004-01-29 テレフオンアクチーボラゲツト　エル　エム　エリクソン Transmitter with composite amplifier
JP2017516258A (en) * 2014-03-24 2017-06-15 アドバンスト・エナジー・インダストリーズ・インコーポレイテッドＡｄｖａｎｃｅｄ Ｅｎｅｒｇｙ Ｉｎｄｕｓｔｒｉｅｓ， Ｉｎｃ． System and method for high frequency generator source impedance control
US10224184B2 (en) 2014-03-24 2019-03-05 Aes Global Holdings, Pte. Ltd System and method for control of high efficiency generator source impedance

Also Published As

Publication number Publication date
JPH0251287B2 (en) 1990-11-07

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