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

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/54Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/542Filters 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

Similar Documents

Publication Publication Date Title
CA2178438A1 (en) Cascaded surface wave device filters
EP1193869A3 (en) Surface-acoustic-wave filter
CA2135983A1 (en) Double mode surface wave resonators
GB1529942A (en) Electrical filters including coupled resonators
SE7905841L (sv) Mikrovagsfilter med smalt passband och elliptisk funktion av udda ordning
CA2234513A1 (en) Surface acoustic wave device
CA2371071A1 (en) Differential surface acoustic wave filter having balanced outputs
CA2089155A1 (en) Multi-stage monolithic ceramic bandstop filter with isolated filter stages
GB2018079A (en) Filters comprising coupled acoustic wave resonators
GB1504333A (en) Filter chain
DE3267946D1 (en) Electrical filter, self-correcting in propagation time
JPS5420638A (en) Polarized filter
GB1514923A (en) Acoustic surface wave filters
CA2062463A1 (en) Surface acoustic wave device for band-pass filter having small insertion loss and predetermined pass-band characteristics for broad band
GB1521725A (en) Crystal filter apparatus
GB2070379B (en) Acoustic wave bandpass electrical filters
GB1363918A (en) Crystal filters
GB1041375A (en) Mechanical frequency filter
GB1514218A (en) Electromechanical resonance device and its application to filtering of television signals
JPS5686501A (en) Band-pass filter
JPS55107319A (en) Surface acoustic wave filter
GB928955A (en) Improvements in or relating to electric filter networks
GB1499774A (en) Filter chain
JPS5762615A (en) Surface acoustic wave filter
GB1028549A (en) Improvements in or relating to band pass filters

Legal Events

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