CA921574A - Feed-forward amplifier with frequency shaping - Google Patents

Feed-forward amplifier with frequency shaping

Info

Publication number
CA921574A
CA921574A CA066614A CA66614A CA921574A CA 921574 A CA921574 A CA 921574A CA 066614 A CA066614 A CA 066614A CA 66614 A CA66614 A CA 66614A CA 921574 A CA921574 A CA 921574A
Authority
CA
Canada
Prior art keywords
feed
forward amplifier
frequency shaping
shaping
frequency
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.)
Expired
Application number
CA066614A
Other languages
English (en)
Other versions
CA66614S (en
Inventor
Seidel Harold
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA921574A publication Critical patent/CA921574A/en
Expired 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
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
    • 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
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/06—Control of transmission; Equalising by the transmitted signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/198—A hybrid coupler being used as coupling circuit between stages of an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
CA066614A 1969-04-25 1969-11-04 Feed-forward amplifier with frequency shaping Expired CA921574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81924769A 1969-04-25 1969-04-25

Publications (1)

Publication Number Publication Date
CA921574A true CA921574A (en) 1973-02-20

Family

ID=25227604

Family Applications (1)

Application Number Title Priority Date Filing Date
CA066614A Expired CA921574A (en) 1969-04-25 1969-11-04 Feed-forward amplifier with frequency shaping

Country Status (9)

Country Link
US (1) US3541467A (xx)
JP (1) JPS4911777B1 (xx)
BE (1) BE748995A (xx)
CA (1) CA921574A (xx)
DE (1) DE2019104C3 (xx)
FR (1) FR2046492A5 (xx)
GB (1) GB1302605A (xx)
NL (1) NL165618C (xx)
SE (1) SE351956B (xx)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1232912A (xx) * 1969-02-20 1971-05-26
US3667065A (en) * 1970-09-04 1972-05-30 Bell Telephone Labor Inc Feed-forward amplifier having arbitrary gain-frequency characteristic
US3737797A (en) * 1971-03-26 1973-06-05 Rca Corp Differential amplifier
US3971993A (en) * 1972-04-21 1976-07-27 Constant James N High capacity recirculating delay loop integrator
US3906401A (en) * 1974-09-03 1975-09-16 Bell Telephone Labor Inc Feedforward error correction in interferometer modulators
SE385177B (sv) * 1975-08-28 1976-06-08 Ericsson Telefon Ab L M Framkopplad forsterkare
US3993961A (en) * 1975-10-31 1976-11-23 Bell Telephone Laboratories, Incorporated Overcompensated feedforward method and apparatus using overdistorted main amplifiers
US4028634A (en) * 1976-02-11 1977-06-07 Bell Telephone Laboratories, Incorporated Feed-forward amplifier with simple resistive coupling
GB1542081A (en) * 1976-08-19 1979-03-14 Standard Telephones Cables Ltd Feedforward amplifiers
FR2418981A1 (fr) * 1978-03-03 1979-09-28 Lignes Telegraph Telephon Circuit d'amplification pour telecommunication en hyperfrequence
DE2915947A1 (de) * 1979-04-20 1980-11-06 Siemens Ag Schaltungsanordnung zur verminderung der amplitudenabhaengigen verzerrungen in ueberlagerungsempfaengern
US4447790A (en) * 1980-10-13 1984-05-08 Nippon Columbia Kabushikikaisha Distortion eliminating circuit
US4394624A (en) * 1981-08-07 1983-07-19 The United States Of America As Represented By The Secretary Of The Navy Channelized feed-forward system
DE3220252C2 (de) * 1982-05-28 1985-09-12 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Beseitigung von Verzerrungen in Verstärkern
US4517521A (en) * 1984-02-28 1985-05-14 C-Cor Electronics, Inc. Feed forward circuit and a method for aligning and balancing the same
US4583049A (en) * 1984-06-15 1986-04-15 Trw Inc. Feed-forward circuit
US5547274A (en) * 1990-03-14 1996-08-20 Orchard Communications Inc. Modulated light source with a linear transfer function
GB9009295D0 (en) * 1990-04-25 1990-06-20 Kenington Peter B Apparatus and method for reducing distortion in amplification
US5334946A (en) * 1990-04-25 1994-08-02 British Technology Group Limited Apparatus and method for reducing distortion in amplification
US5065110A (en) * 1990-05-02 1991-11-12 Teledyne Mec Feed-forward amplifier including phase correction
US5768699A (en) * 1995-10-20 1998-06-16 Aml Communications, Inc. Amplifier with detuned test signal cancellation for improved wide-band frequency response
US5808512A (en) * 1997-01-31 1998-09-15 Ophir Rf, Inc. Feed forward amplifiers and methods
US6285252B1 (en) 1999-09-30 2001-09-04 Harmonic Inc. Apparatus and method for broadband feedforward predistortion
US7091781B2 (en) * 2004-10-29 2006-08-15 Motorola, Inc. Wideband feed forward linear power amplifier
US7656236B2 (en) 2007-05-15 2010-02-02 Teledyne Wireless, Llc Noise canceling technique for frequency synthesizer
US8179045B2 (en) 2008-04-22 2012-05-15 Teledyne Wireless, Llc Slow wave structure having offset projections comprised of a metal-dielectric composite stack
US9202660B2 (en) 2013-03-13 2015-12-01 Teledyne Wireless, Llc Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes
US9831835B2 (en) * 2016-02-26 2017-11-28 Nxp Usa, Inc. Multiple path amplifier with pre-cancellation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592716A (en) * 1949-03-25 1952-04-15 Bell Telephone Labor Inc Self-correcting amplifier

Also Published As

Publication number Publication date
DE2019104B2 (de) 1977-10-20
US3541467A (en) 1970-11-17
GB1302605A (xx) 1973-01-10
DE2019104A1 (de) 1970-11-12
BE748995A (fr) 1970-09-16
NL165618B (nl) 1980-11-17
DE2019104C3 (de) 1978-06-08
NL165618C (nl) 1981-04-15
SE351956B (xx) 1972-12-11
NL7005675A (xx) 1970-10-27
JPS4911777B1 (xx) 1974-03-19
FR2046492A5 (xx) 1971-03-05

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