GB1002941A - Improvements in or relating to electric filter networks - Google Patents

Improvements in or relating to electric filter networks

Info

Publication number
GB1002941A
GB1002941A GB1994863A GB1994863A GB1002941A GB 1002941 A GB1002941 A GB 1002941A GB 1994863 A GB1994863 A GB 1994863A GB 1994863 A GB1994863 A GB 1994863A GB 1002941 A GB1002941 A GB 1002941A
Authority
GB
United Kingdom
Prior art keywords
frequency
inductances
relating
capacitances
joined
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
GB1994863A
Inventor
Peter Visontai
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1994863A priority Critical patent/GB1002941A/en
Publication of GB1002941A publication Critical patent/GB1002941A/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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/09—Filters comprising mutual inductance
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1775—Parallel LC in shunt or branch path
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1791—Combined LC in shunt or branch path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Filters And Equalizers (AREA)

Abstract

1,002,941. Multi-resonant filters. GENERAL ELECTRIC CO. Ltd. May 20, 1964 [May 20, 1963], No. 19948/63. Heading H3U. A filter network comprises two or more capacitances in series across the input terminals and an equal number of inductances joined in parallel with different numbers of said capacitances, all the inductances being joined at one of their ends to one of the input terminals, the arrangement being parallel resonant to two or more frequencies. Thus in Fig. 6 components 5 and 3 resonate at the first frequency, 6 and 4 at the second frequency and 23 and 24 at the third frequency. A fraction of the output can be taken off from an inductor coupled with the coil 5 and used for neutralization in an amplifier (Fig. 2, not shown). If the output impedance is to be different from the input impedance, either of terminals 1 or 7 can be tapped down the coil 5 (Figs. 3 and 4, not shown). For use as a multipletuned band-pass arrangement, two circuits such as Fig. 6 are used with the corresponding inductances magnetically coupled (Fig. 5, not shown).
GB1994863A 1963-05-20 1963-05-20 Improvements in or relating to electric filter networks Expired GB1002941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1994863A GB1002941A (en) 1963-05-20 1963-05-20 Improvements in or relating to electric filter networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1994863A GB1002941A (en) 1963-05-20 1963-05-20 Improvements in or relating to electric filter networks

Publications (1)

Publication Number Publication Date
GB1002941A true GB1002941A (en) 1965-09-02

Family

ID=10137802

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1994863A Expired GB1002941A (en) 1963-05-20 1963-05-20 Improvements in or relating to electric filter networks

Country Status (1)

Country Link
GB (1) GB1002941A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2828838A1 (en) * 1977-07-01 1979-01-25 Hitachi Ltd HIGH FREQUENCY CIRCUIT ARRANGEMENT
EP1079513A1 (en) * 1999-08-19 2001-02-28 Alps Electric Co., Ltd. Oscillating apparatus including two-band resonance circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2828838A1 (en) * 1977-07-01 1979-01-25 Hitachi Ltd HIGH FREQUENCY CIRCUIT ARRANGEMENT
DE2828838C2 (en) * 1977-07-01 1983-10-20 Hitachi, Ltd., Tokyo RF input circuit for television receivers
EP1079513A1 (en) * 1999-08-19 2001-02-28 Alps Electric Co., Ltd. Oscillating apparatus including two-band resonance circuit
US6292063B1 (en) 1999-08-19 2001-09-18 Alps Electric Co., Ltd. Oscillating apparatus including two-band resonance circuit

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