GB1504333A - Filter chain - Google Patents

Filter chain

Info

Publication number
GB1504333A
GB1504333A GB6716/75A GB671675A GB1504333A GB 1504333 A GB1504333 A GB 1504333A GB 6716/75 A GB6716/75 A GB 6716/75A GB 671675 A GB671675 A GB 671675A GB 1504333 A GB1504333 A GB 1504333A
Authority
GB
United Kingdom
Prior art keywords
resonators
impedances
filter units
pass band
electric
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
GB6716/75A
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 GB1504333A publication Critical patent/GB1504333A/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)
GB6716/75A 1974-02-21 1975-02-17 Filter chain Expired GB1504333A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7402388,A NL178380C (nl) 1974-02-21 1974-02-21 Piezo-elektrisch filter.

Publications (1)

Publication Number Publication Date
GB1504333A true GB1504333A (en) 1978-03-22

Family

ID=19820800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6716/75A Expired GB1504333A (en) 1974-02-21 1975-02-17 Filter chain

Country Status (6)

Country Link
JP (1) JPS50120237A (xx)
DE (1) DE2506408C2 (xx)
FR (1) FR2262443B1 (xx)
GB (1) GB1504333A (xx)
NL (1) NL178380C (xx)
SE (1) SE407651B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5297039U (xx) * 1976-01-17 1977-07-20

Family Cites Families (1)

* 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

Also Published As

Publication number Publication date
DE2506408C2 (de) 1985-09-26
DE2506408A1 (de) 1975-08-28
FR2262443B1 (xx) 1977-04-15
JPS50120237A (xx) 1975-09-20
NL178380C (nl) 1986-03-03
SE407651B (sv) 1979-04-02
SE7501802L (xx) 1975-08-22
FR2262443A1 (xx) 1975-09-19
NL178380B (nl) 1985-10-01
NL7402388A (nl) 1975-08-25

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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