GB1499774A - Filter chain - Google Patents

Filter chain

Info

Publication number
GB1499774A
GB1499774A GB13547/75A GB1354775A GB1499774A GB 1499774 A GB1499774 A GB 1499774A GB 13547/75 A GB13547/75 A GB 13547/75A GB 1354775 A GB1354775 A GB 1354775A GB 1499774 A GB1499774 A GB 1499774A
Authority
GB
United Kingdom
Prior art keywords
pair
dual
resonance frequency
duals
april
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
GB13547/75A
Other languages
English (en)
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.)
Nederlanden Staat
Original Assignee
Nederlanden Staat
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 Nederlanden Staat filed Critical Nederlanden Staat
Publication of GB1499774A publication Critical patent/GB1499774A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
GB13547/75A 1974-04-11 1975-04-02 Filter chain Expired GB1499774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7405011,A NL174791C (nl) 1974-04-11 1974-04-11 Piezo-elektrisch filter met een zeer smalle doorlaatband.

Publications (1)

Publication Number Publication Date
GB1499774A true GB1499774A (en) 1978-02-01

Family

ID=19821162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13547/75A Expired GB1499774A (en) 1974-04-11 1975-04-02 Filter chain

Country Status (6)

Country Link
JP (1) JPS5830767B2 (nl)
DE (1) DE2514403C2 (nl)
FR (1) FR2275068A1 (nl)
GB (1) GB1499774A (nl)
NL (1) NL174791C (nl)
SE (1) SE408513B (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52101337U (nl) * 1976-01-28 1977-08-01
DE3872217D1 (de) * 1987-08-12 1992-07-23 Avl Verbrennungskraft Messtech Einrichtung zur einbringung des kraftstoffes in den brennraum einer brennkraftmaschine.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585537A (en) * 1969-02-10 1971-06-15 Bell Telephone Labor Inc Electric wave filters
US3716808A (en) * 1971-05-20 1973-02-13 Motorola Inc Bandpass filter including monolithic crystal elements with resonating portions selected for symmetrical response
FR2186175A5 (nl) * 1972-05-24 1974-01-04 Thomson Csf

Also Published As

Publication number Publication date
DE2514403C2 (de) 1984-12-20
FR2275068B1 (nl) 1977-04-15
DE2514403A1 (de) 1976-03-04
NL174791B (nl) 1984-03-01
NL174791C (nl) 1984-08-01
JPS5830767B2 (ja) 1983-07-01
SE408513B (sv) 1979-06-11
JPS50138754A (nl) 1975-11-05
NL7405011A (nl) 1975-10-14
FR2275068A1 (fr) 1976-01-09
SE7504134L (sv) 1975-10-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee