JPS5792907A - Phase compensating circuit - Google Patents

Phase compensating circuit

Info

Publication number
JPS5792907A
JPS5792907A JP16935880A JP16935880A JPS5792907A JP S5792907 A JPS5792907 A JP S5792907A JP 16935880 A JP16935880 A JP 16935880A JP 16935880 A JP16935880 A JP 16935880A JP S5792907 A JPS5792907 A JP S5792907A
Authority
JP
Japan
Prior art keywords
frequency
signal
amplifier
phase
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.)
Pending
Application number
JP16935880A
Other languages
Japanese (ja)
Inventor
Hideo Ashida
Yasuhiro Yano
Tetsuji Nakatani
Yoshihiro Ishiyama
Kozo Morita
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.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone 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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP16935880A priority Critical patent/JPS5792907A/en
Publication of JPS5792907A publication Critical patent/JPS5792907A/en
Pending 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

Abstract

PURPOSE:To reduce the phase distortion throughout a wide band, by providing a frequency converter between the first amplifier and the second amplifier and making the local oscillation frequency of the frequency converter higher than the signal frequency. CONSTITUTION:A frequency converter 32 is connected between the first amplifier 31 and the second amplifier 35 to not only make the frequency of a signal applied to an input terminal IN and the frequency of a signal taken out from an output terminal OUT different from each other but also compensate the phase. The oscillation frequency of a local oscillator 33 is made higher than the frequency of the input signal, and the output signal of the frequency converter 32 is applied to the amplifier 35 through a band-pass filter 34 to obtain a signal having the differential frequency between the local oscillation frequency and the frequency of the input signal. If phase characteristics of amplifiers 31 and 35 are similar to each other, the phase distortion is compensated by selecting the input amplitude ratio of amplifiers 31 and 35.
JP16935880A 1980-12-01 1980-12-01 Phase compensating circuit Pending JPS5792907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16935880A JPS5792907A (en) 1980-12-01 1980-12-01 Phase compensating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16935880A JPS5792907A (en) 1980-12-01 1980-12-01 Phase compensating circuit

Publications (1)

Publication Number Publication Date
JPS5792907A true JPS5792907A (en) 1982-06-09

Family

ID=15885091

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16935880A Pending JPS5792907A (en) 1980-12-01 1980-12-01 Phase compensating circuit

Country Status (1)

Country Link
JP (1) JPS5792907A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009026650A (en) * 2007-07-20 2009-02-05 Konica Minolta Holdings Inc Luminaire and lighting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009026650A (en) * 2007-07-20 2009-02-05 Konica Minolta Holdings Inc Luminaire and lighting method

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