GB703020A - Improvements in or relating to frequency filters - Google Patents

Improvements in or relating to frequency filters

Info

Publication number
GB703020A
GB703020A GB1705751A GB1705751A GB703020A GB 703020 A GB703020 A GB 703020A GB 1705751 A GB1705751 A GB 1705751A GB 1705751 A GB1705751 A GB 1705751A GB 703020 A GB703020 A GB 703020A
Authority
GB
United Kingdom
Prior art keywords
july
vibration
relating
frequency filters
members
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
GB1705751A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1705751A priority Critical patent/GB703020A/en
Publication of GB703020A publication Critical patent/GB703020A/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
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/0504—Holders; Supports for bulk acoustic wave devices
    • H03H9/0514—Holders; Supports for bulk acoustic wave devices consisting of mounting pads or bumps
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/09—Elastic or damping supports
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

703,020. Electromechanical filters. WALTON, J. H. D. July 17, 1952 [July 18, 1951], No. 17057/51. Class 40 (8) A frequency filter comprises bimorph crystal input and output transducers 19 and 22 coupled by a mechanical resonance element 16 of greater vibrating mass than the crystals, the latter being connectec to the element through resilient members 18 and 20. Two modes of vibration may be set up in element 16 if desired by placing members 18 and 20 at an angle witl a line parallel to the axis of the filter. As shown element 16 is a ring supported by a diaphragm 13 at the nodal points 15 for a desired mode of vibration.
GB1705751A 1951-07-18 1951-07-18 Improvements in or relating to frequency filters Expired GB703020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1705751A GB703020A (en) 1951-07-18 1951-07-18 Improvements in or relating to frequency filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1705751A GB703020A (en) 1951-07-18 1951-07-18 Improvements in or relating to frequency filters

Publications (1)

Publication Number Publication Date
GB703020A true GB703020A (en) 1954-01-27

Family

ID=10088474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1705751A Expired GB703020A (en) 1951-07-18 1951-07-18 Improvements in or relating to frequency filters

Country Status (1)

Country Link
GB (1) GB703020A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230142B (en) * 1960-05-14 1966-12-08 Telefunken Patent Mechanical filter holder and method of making it
DE1242770B (en) * 1957-03-22 1967-06-22 Telefunken Patent Mechanical frequency filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242770B (en) * 1957-03-22 1967-06-22 Telefunken Patent Mechanical frequency filter
DE1230142B (en) * 1960-05-14 1966-12-08 Telefunken Patent Mechanical filter holder and method of making it

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