GB1469277A - Electromechanical filters - Google Patents

Electromechanical filters

Info

Publication number
GB1469277A
GB1469277A GB1206074A GB1206074A GB1469277A GB 1469277 A GB1469277 A GB 1469277A GB 1206074 A GB1206074 A GB 1206074A GB 1206074 A GB1206074 A GB 1206074A GB 1469277 A GB1469277 A GB 1469277A
Authority
GB
United Kingdom
Prior art keywords
resonators
input
output
coupling
elements
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
GB1206074A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1469277A publication Critical patent/GB1469277A/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
    • H03H9/48—Coupling means therefor
    • H03H9/52—Electric coupling means

Abstract

1469277 Electro-mechanical filters SIEMENS AG 19 March 1974 [3 April 1973] 12060/74 Heading H3U The band-pass filter of Specification 1,424,688, having input, output and intermediate elements, is modified in that, in addition to coupling elements which couple each pair of directlyadjacent resonators, there is provided at least one additional coupling element between one of the intermediate resonators and another one of the resonators which is not directly adjacent thereto. An electrical coupling may also be provided by a capacitor connected between the input and output resonators.
GB1206074A 1973-04-03 1974-03-19 Electromechanical filters Expired GB1469277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732316646 DE2316646C2 (en) 1973-04-03 1973-04-03 Mechanical filter with at least four resonators

Publications (1)

Publication Number Publication Date
GB1469277A true GB1469277A (en) 1977-04-06

Family

ID=5876879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1206074A Expired GB1469277A (en) 1973-04-03 1974-03-19 Electromechanical filters

Country Status (12)

Country Link
JP (1) JPS49131353A (en)
AR (1) AR204243A1 (en)
AT (1) AT336085B (en)
AU (1) AU459860B2 (en)
BE (1) BE813241A (en)
BR (1) BR7402608D0 (en)
DE (1) DE2316646C2 (en)
FR (1) FR2224936B1 (en)
GB (1) GB1469277A (en)
IT (1) IT1004436B (en)
NL (1) NL7404541A (en)
YU (1) YU36840B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1902091C3 (en) * 1969-01-16 1975-07-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Arrangement for keying out of band signals into the transmission path of a carrier-frequency telephone transmission device

Also Published As

Publication number Publication date
FR2224936A1 (en) 1974-10-31
ATA270574A (en) 1976-08-15
BR7402608D0 (en) 1974-11-19
AU6743874A (en) 1975-04-10
BE813241A (en) 1974-07-31
YU36840B (en) 1984-08-31
IT1004436B (en) 1976-07-10
YU92274A (en) 1982-06-18
DE2316646A1 (en) 1974-10-17
FR2224936B1 (en) 1976-12-17
AT336085B (en) 1977-04-12
NL7404541A (en) 1974-10-07
JPS49131353A (en) 1974-12-17
AR204243A1 (en) 1975-12-10
DE2316646C2 (en) 1984-09-13
AU459860B2 (en) 1975-04-10

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Legal Events

Date Code Title Description
PS Patent sealed
49R Reference inserted (sect. 9/1949)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee