DE2649519B2 - Hochfrequenzverstärker - Google Patents

Hochfrequenzverstärker

Info

Publication number
DE2649519B2
DE2649519B2 DE2649519A DE2649519A DE2649519B2 DE 2649519 B2 DE2649519 B2 DE 2649519B2 DE 2649519 A DE2649519 A DE 2649519A DE 2649519 A DE2649519 A DE 2649519A DE 2649519 B2 DE2649519 B2 DE 2649519B2
Authority
DE
Germany
Prior art keywords
frequency
capacitor
amplifier
parallel
amplifier transistor
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.)
Withdrawn
Application number
DE2649519A
Other languages
German (de)
English (en)
Other versions
DE2649519A1 (de
Inventor
Hiroshi Nakaminato Kimura (Japan)
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE2649519A1 publication Critical patent/DE2649519A1/de
Publication of DE2649519B2 publication Critical patent/DE2649519B2/de
Withdrawn legal-status Critical Current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
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/191—Tuned amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
DE2649519A 1975-10-31 1976-10-29 Hochfrequenzverstärker Withdrawn DE2649519B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50130455A JPS5255359A (en) 1975-10-31 1975-10-31 High-frequency amplifier circuit

Publications (2)

Publication Number Publication Date
DE2649519A1 DE2649519A1 (de) 1977-05-05
DE2649519B2 true DE2649519B2 (de) 1979-02-08

Family

ID=15034636

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2649519A Withdrawn DE2649519B2 (de) 1975-10-31 1976-10-29 Hochfrequenzverstärker

Country Status (3)

Country Link
US (1) US4048578A (enExample)
JP (1) JPS5255359A (enExample)
DE (1) DE2649519B2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3705932C1 (de) * 1987-02-25 1988-09-22 Telefunken Electronic Gmbh Verstaerker

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5252820A (en) * 1991-03-11 1993-10-12 Mitsubishi Denki Kabushiki Kaisha Photoelectric conversion circuit having a tuning circuit and changeover switcher
US5278519A (en) * 1991-11-13 1994-01-11 Ericsson Ge Mobile Communications Inc. Method and apparatus for controlling RF spectral splatter into adjacent channels when activating an RF transmitter
US6181200B1 (en) * 1999-04-09 2001-01-30 Integra Technologies, Inc. Radio frequency power device
JP2012227568A (ja) * 2011-04-14 2012-11-15 Fujitsu Ltd 差動増幅回路
DK2775616T3 (da) 2011-11-25 2019-11-11 Oticon As HF-sender til elektrisk kort antenne

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956121A (en) * 1930-04-19 1934-04-24 Invex Corp Static suppressor system
US2542087A (en) * 1947-02-15 1951-02-20 Rca Corp Neutralization of amplifiers
US2873360A (en) * 1955-11-29 1959-02-10 Aladdin Ind Inc Very high frequency tuner convertible to intermediate frequency amplifier
DE1441876B2 (de) * 1963-06-28 1971-02-18 Siemens AG, 1000 Berlin u 8000 München Schaltung zur verstaerkungsregelung mit einem richtleiter
JPS5129692U (enExample) * 1974-08-22 1976-03-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3705932C1 (de) * 1987-02-25 1988-09-22 Telefunken Electronic Gmbh Verstaerker

Also Published As

Publication number Publication date
US4048578A (en) 1977-09-13
JPS555286B2 (enExample) 1980-02-05
JPS5255359A (en) 1977-05-06
DE2649519A1 (de) 1977-05-05

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Legal Events

Date Code Title Description
8230 Patent withdrawn