GB1397555A - Coupling circuits - Google Patents

Coupling circuits

Info

Publication number
GB1397555A
GB1397555A GB3980171A GB3980171A GB1397555A GB 1397555 A GB1397555 A GB 1397555A GB 3980171 A GB3980171 A GB 3980171A GB 3980171 A GB3980171 A GB 3980171A GB 1397555 A GB1397555 A GB 1397555A
Authority
GB
United Kingdom
Prior art keywords
reactance
parallel combination
terminal
coupling
inductors
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
GB3980171A
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.)
Marconi Instruments Ltd
Original Assignee
Marconi Instruments 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 Marconi Instruments Ltd filed Critical Marconi Instruments Ltd
Priority to GB3980171A priority Critical patent/GB1397555A/en
Publication of GB1397555A publication Critical patent/GB1397555A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/004—Capacitive coupling circuits not otherwise provided for
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)

Abstract

1397555 Amplifying circuits; filters MARCONI INSTRUMENTS Ltd 7 Aug 1972 [25 Aug 1971] 39801/71 Headings H3T and H3U A circuit for coupling the output of an active device 1 in the form of a current source to the input of a further active device includes a first tuned circuit comprising a first parallel combination formed by an inductor 4 and an effective shunt resistance 5, a reactance 8 having one terminal connected to a source of reference potential and a first capacitor 6 coupling the other terminal of the reactance 8 to the first parallel combination, and a second tuned circuit comprising a second parallel combination formed by a second capacitor 7 and a second effective shunt resistance 10, the reactance 8 and a second conductor 9 connected between the second parallel combination and the other terminal of the reactance 8, such that the frequency response curve is substantially symmetrical about the centre frequency. In a second embodiment (Fig. 11, not shown) the arrangement is reversed, i.e. the inductors 4, 9 are replaced by capacitors (13, 16) and the capacitors 6, 7 by inductors (14, 15).
GB3980171A 1971-08-25 1971-08-25 Coupling circuits Expired GB1397555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3980171A GB1397555A (en) 1971-08-25 1971-08-25 Coupling circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3980171A GB1397555A (en) 1971-08-25 1971-08-25 Coupling circuits

Publications (1)

Publication Number Publication Date
GB1397555A true GB1397555A (en) 1975-06-11

Family

ID=10411584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3980171A Expired GB1397555A (en) 1971-08-25 1971-08-25 Coupling circuits

Country Status (1)

Country Link
GB (1) GB1397555A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164514A (en) * 1984-09-05 1986-03-19 Westinghouse Brake & Signal Low distortion limiter circuit
GB2164813A (en) * 1984-09-21 1986-03-26 Sharp Kk Noise filter for an electric apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164514A (en) * 1984-09-05 1986-03-19 Westinghouse Brake & Signal Low distortion limiter circuit
GB2164813A (en) * 1984-09-21 1986-03-26 Sharp Kk Noise filter for an electric apparatus

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee