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JPS5527745A - Ultra-high frequency transistor amplifier - Google Patents

Ultra-high frequency transistor amplifier

Info

Publication number
JPS5527745A
JPS5527745A JP10073478A JP10073478A JPS5527745A JP S5527745 A JPS5527745 A JP S5527745A JP 10073478 A JP10073478 A JP 10073478A JP 10073478 A JP10073478 A JP 10073478A JP S5527745 A JPS5527745 A JP S5527745A
Authority
JP
Japan
Prior art keywords
output
amplifier
wave
supplied
tertiary
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
JP10073478A
Other languages
Japanese (ja)
Other versions
JPS6141443B2 (en
Inventor
Kazuhiko Honjo
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 JP10073478A priority Critical patent/JPS5527745A/en
Publication of JPS5527745A publication Critical patent/JPS5527745A/en
Publication of JPS6141443B2 publication Critical patent/JPS6141443B2/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
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward

Landscapes

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

Abstract

PURPOSE:To reduce the level of the tertiary mutual modulation distortion wave without changing the signal output level by giving an equivalent control to only the load impedance against the tertiary mutual modulation distortion wave and without changing the load impedance against the signal frequency of the amplifier. CONSTITUTION:The ultra-high frequency carrier composed of two waves is divided into two parts through 3dB directional coupler 2. And one of the divided part of the wave is supplied to main transistor amplifier 1 via delay circuit 25 which corrects the time delay of the main amplifier circuit and the distortion wave injection circuit; and the other is supplied to auxiliary amplifier 3 featuring an intensive tertiary distortion property. The double frequency output of the tertiary mutual modulation component among the output of amplifier 3 is branched 4, and one of the branched output is supplied to 3dB directional coupler 9 via variable resistance attenuator 5 and variable phase shifter 8 with the other also supplied to coupler 9 via variable resistance attenuator 6 and phase shifter 7 respectively. The output of coupler 9 is injected to the output of amplifier 1 via circulator 10, and the reflected wave (output wave) of amplifier 1 is obtained through output terminal 12.
JP10073478A 1978-08-17 1978-08-17 Ultra-high frequency transistor amplifier Granted JPS5527745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10073478A JPS5527745A (en) 1978-08-17 1978-08-17 Ultra-high frequency transistor amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10073478A JPS5527745A (en) 1978-08-17 1978-08-17 Ultra-high frequency transistor amplifier

Publications (2)

Publication Number Publication Date
JPS5527745A true JPS5527745A (en) 1980-02-28
JPS6141443B2 JPS6141443B2 (en) 1986-09-16

Family

ID=14281803

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10073478A Granted JPS5527745A (en) 1978-08-17 1978-08-17 Ultra-high frequency transistor amplifier

Country Status (1)

Country Link
JP (1) JPS5527745A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5385142A (en) * 1977-01-06 1978-07-27 Nippon Telegr & Teleph Corp <Ntt> Amplifier
JPS5385143A (en) * 1977-01-06 1978-07-27 Nippon Telegr & Teleph Corp <Ntt> Power synthesizing amplifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5385142A (en) * 1977-01-06 1978-07-27 Nippon Telegr & Teleph Corp <Ntt> Amplifier
JPS5385143A (en) * 1977-01-06 1978-07-27 Nippon Telegr & Teleph Corp <Ntt> Power synthesizing amplifier

Also Published As

Publication number Publication date
JPS6141443B2 (en) 1986-09-16

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