GB1228667A - - Google Patents

Info

Publication number
GB1228667A
GB1228667A GB1228667DA GB1228667A GB 1228667 A GB1228667 A GB 1228667A GB 1228667D A GB1228667D A GB 1228667DA GB 1228667 A GB1228667 A GB 1228667A
Authority
GB
United Kingdom
Prior art keywords
resonant
elements
active
circuit
resistance
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
Other languages
English (en)
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 filed Critical
Publication of GB1228667A publication Critical patent/GB1228667A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/10—Frequency selective two-port networks using negative impedance converters

Landscapes

  • Networks Using Active Elements (AREA)
GB1228667D 1968-05-10 1969-05-09 Expired GB1228667A (US07709020-20100504-C00068.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE06328/68A SE348337B (US07709020-20100504-C00068.png) 1968-05-10 1968-05-10

Publications (1)

Publication Number Publication Date
GB1228667A true GB1228667A (US07709020-20100504-C00068.png) 1971-04-15

Family

ID=20268402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228667D Expired GB1228667A (US07709020-20100504-C00068.png) 1968-05-10 1969-05-09

Country Status (4)

Country Link
US (1) US3594650A (US07709020-20100504-C00068.png)
DE (1) DE1924390A1 (US07709020-20100504-C00068.png)
GB (1) GB1228667A (US07709020-20100504-C00068.png)
SE (1) SE348337B (US07709020-20100504-C00068.png)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750037A (en) * 1971-05-20 1973-07-31 Gte Automatic Electric Lab Inc Inductorless lowpass filter utilizing frequency dependent negative resistors
GB1585097A (en) * 1976-06-23 1981-02-25 Post Office Active filter
US4315229A (en) * 1979-03-02 1982-02-09 The Post Office Bandstop filters
US4464637A (en) * 1982-11-30 1984-08-07 The United States Of America As Represented By The Secretary Of The Navy Semi-active notch filter
US5550520A (en) * 1995-04-11 1996-08-27 Trw Inc. Monolithic HBT active tuneable band-pass filter
US7733165B2 (en) * 2007-02-27 2010-06-08 Infineon Technologies Ag Circuit arrangement with interference protection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE529361A (US07709020-20100504-C00068.png) * 1953-06-08
US3120645A (en) * 1959-10-30 1964-02-04 Bell Telephone Labor Inc Nonreciprocal wave translating device
US3141138A (en) * 1960-10-24 1964-07-14 Kokusai Denshin Denwa Co Ltd Unidirectional amplifier consisting of concatenated bidirectional negative resistance amplifiers which are coupled by delay networks and energized sequentially

Also Published As

Publication number Publication date
SE348337B (US07709020-20100504-C00068.png) 1972-08-28
US3594650A (en) 1971-07-20
DE1924390A1 (de) 1970-01-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees