GB2330714B - A matrix amplifier with unwanted outputs radiated away - Google Patents

A matrix amplifier with unwanted outputs radiated away

Info

Publication number
GB2330714B
GB2330714B GB9828629A GB9828629A GB2330714B GB 2330714 B GB2330714 B GB 2330714B GB 9828629 A GB9828629 A GB 9828629A GB 9828629 A GB9828629 A GB 9828629A GB 2330714 B GB2330714 B GB 2330714B
Authority
GB
United Kingdom
Prior art keywords
matrix amplifier
radiated away
unwanted outputs
unwanted
outputs radiated
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 - Lifetime
Application number
GB9828629A
Other versions
GB2330714A (en
GB9828629D0 (en
Inventor
Paul W Dent
Ross W Lampe
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.)
Ericsson Inc
Original Assignee
Ericsson GE Mobile Communications 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
Priority claimed from US08/179,947 external-priority patent/US5574967A/en
Application filed by Ericsson GE Mobile Communications Inc filed Critical Ericsson GE Mobile Communications Inc
Publication of GB9828629D0 publication Critical patent/GB9828629D0/en
Publication of GB2330714A publication Critical patent/GB2330714A/en
Application granted granted Critical
Publication of GB2330714B publication Critical patent/GB2330714B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H03F3/602—Combinations of several amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
GB9828629A 1994-01-11 1995-01-11 A matrix amplifier with unwanted outputs radiated away Expired - Lifetime GB2330714B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/179,947 US5574967A (en) 1994-01-11 1994-01-11 Waste energy control and management in power amplifiers
GB9518372A GB2290669B (en) 1994-01-11 1995-01-11 Waste energy control management for power amplifier

Publications (3)

Publication Number Publication Date
GB9828629D0 GB9828629D0 (en) 1999-02-17
GB2330714A GB2330714A (en) 1999-04-28
GB2330714B true GB2330714B (en) 1999-06-23

Family

ID=26307710

Family Applications (5)

Application Number Title Priority Date Filing Date
GB9828635A Expired - Lifetime GB2330468B (en) 1994-01-11 1995-01-11 Using class C amplifier pairs in an amplifier array
GB9828625A Expired - Lifetime GB2330467B (en) 1994-01-11 1995-01-11 Using saturated class C amplifier pairs to produce a linear output
GB9828632A Expired - Lifetime GB2330715B (en) 1994-01-11 1995-01-11 A multi-channel amplifier with Cartesian feedback
GB9828629A Expired - Lifetime GB2330714B (en) 1994-01-11 1995-01-11 A matrix amplifier with unwanted outputs radiated away
GB9828621A Expired - Lifetime GB2330466B (en) 1994-01-11 1995-01-11 Waste energy control management for power amplifier

Family Applications Before (3)

Application Number Title Priority Date Filing Date
GB9828635A Expired - Lifetime GB2330468B (en) 1994-01-11 1995-01-11 Using class C amplifier pairs in an amplifier array
GB9828625A Expired - Lifetime GB2330467B (en) 1994-01-11 1995-01-11 Using saturated class C amplifier pairs to produce a linear output
GB9828632A Expired - Lifetime GB2330715B (en) 1994-01-11 1995-01-11 A multi-channel amplifier with Cartesian feedback

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9828621A Expired - Lifetime GB2330466B (en) 1994-01-11 1995-01-11 Waste energy control management for power amplifier

Country Status (1)

Country Link
GB (5) GB2330468B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11764738B2 (en) * 2020-09-24 2023-09-19 Analog Devices International Unlimited Company Segmented power amplifier arrangements with feedforward adaptive bias circuits

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917998A (en) * 1973-11-02 1975-11-04 Communications Satellite Corp Butler matrix transponder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319359A (en) * 1980-04-10 1982-03-09 Rca Corporation Radio transmitter energy recovery system
EP0635934B1 (en) * 1990-02-07 1998-09-09 Fujitsu Limited Constant-amplitude wave combination type amplifier
JPH0495409A (en) * 1990-08-13 1992-03-27 Fujitsu Ltd Amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917998A (en) * 1973-11-02 1975-11-04 Communications Satellite Corp Butler matrix transponder

Also Published As

Publication number Publication date
GB2330468B (en) 1999-06-23
GB2330715B (en) 1999-06-23
GB2330467A (en) 1999-04-21
GB2330715A (en) 1999-04-28
GB9828635D0 (en) 1999-02-17
GB9828625D0 (en) 1999-02-17
GB2330467B (en) 1999-06-23
GB2330466B (en) 1999-06-23
GB2330468A (en) 1999-04-21
GB2330714A (en) 1999-04-28
GB9828621D0 (en) 1999-02-17
GB9828629D0 (en) 1999-02-17
GB2330466A (en) 1999-04-21
GB9828632D0 (en) 1999-02-17

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20150110