JPS548955A - Grounding system for transistor amplifier - Google Patents

Grounding system for transistor amplifier

Info

Publication number
JPS548955A
JPS548955A JP7467377A JP7467377A JPS548955A JP S548955 A JPS548955 A JP S548955A JP 7467377 A JP7467377 A JP 7467377A JP 7467377 A JP7467377 A JP 7467377A JP S548955 A JPS548955 A JP S548955A
Authority
JP
Japan
Prior art keywords
transistor amplifier
grounding system
grounding
series
operating 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.)
Pending
Application number
JP7467377A
Other languages
Japanese (ja)
Inventor
Osahisa Furuya
Yoshikazu Doi
Haruo Yokouchi
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
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7467377A priority Critical patent/JPS548955A/en
Publication of JPS548955A publication Critical patent/JPS548955A/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
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/083—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements in transistor amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To lower the grounding impedance at DC and low frequency, by connecting the capacitive element inseries resonance with the parasitic inductance of the ground line at operating frequency in series with the ground wire so that the grounding wire impedance at the operating frequency is closed to zero, and by connecting the second inductance element in parallel with the series capacitive element.
JP7467377A 1977-06-23 1977-06-23 Grounding system for transistor amplifier Pending JPS548955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7467377A JPS548955A (en) 1977-06-23 1977-06-23 Grounding system for transistor amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7467377A JPS548955A (en) 1977-06-23 1977-06-23 Grounding system for transistor amplifier

Publications (1)

Publication Number Publication Date
JPS548955A true JPS548955A (en) 1979-01-23

Family

ID=13553970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7467377A Pending JPS548955A (en) 1977-06-23 1977-06-23 Grounding system for transistor amplifier

Country Status (1)

Country Link
JP (1) JPS548955A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59167185A (en) * 1983-03-11 1984-09-20 Hitachi Ltd Signal read circuit of solid-state device
US4764736A (en) * 1984-10-01 1988-08-16 Matsushita Electric Industrial Co., Ltd. Amplifier for high frequency signal
CN108011599A (en) * 2017-12-20 2018-05-08 深圳飞骧科技有限公司 A kind of match circuit structure and method for effectively suppressing handset power amplifier low frequency spur

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59167185A (en) * 1983-03-11 1984-09-20 Hitachi Ltd Signal read circuit of solid-state device
JPH059988B2 (en) * 1983-03-11 1993-02-08 Hitachi Ltd
US4764736A (en) * 1984-10-01 1988-08-16 Matsushita Electric Industrial Co., Ltd. Amplifier for high frequency signal
CN108011599A (en) * 2017-12-20 2018-05-08 深圳飞骧科技有限公司 A kind of match circuit structure and method for effectively suppressing handset power amplifier low frequency spur
WO2019119879A1 (en) * 2017-12-20 2019-06-27 深圳飞骧科技有限公司 Matching circuit structure for effectively suppressing low-frequency clutter of power amplifier of mobile phone, and method using same
CN108011599B (en) * 2017-12-20 2020-07-07 深圳飞骧科技有限公司 Matching circuit structure and method for inhibiting low-frequency clutter of mobile phone power amplifier
US11575352B2 (en) 2017-12-20 2023-02-07 Lansus Technologies Inc Matching circuit structure for effectively suppressing low-frequency clutter of power amplifier of mobile phone, and method using same

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