GB1344924A - Filter or delay line devices employing piezo-electric ceramics - Google Patents

Filter or delay line devices employing piezo-electric ceramics

Info

Publication number
GB1344924A
GB1344924A GB1178471*[A GB1178471A GB1344924A GB 1344924 A GB1344924 A GB 1344924A GB 1178471 A GB1178471 A GB 1178471A GB 1344924 A GB1344924 A GB 1344924A
Authority
GB
United Kingdom
Prior art keywords
filter
delay line
ceramic
april
sets
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
GB1178471*[A
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.)
Siemens Corp
Original Assignee
Siemens Corp
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
Priority claimed from DE19702021090 external-priority patent/DE2021090C/de
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of GB1344924A publication Critical patent/GB1344924A/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 elements; Electromechanical resonators
    • H03H9/30—Time-delay networks
    • H03H9/42—Time-delay networks using surface acoustic waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
GB1178471*[A 1970-04-29 1971-04-28 Filter or delay line devices employing piezo-electric ceramics Expired GB1344924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702021090 DE2021090C (de) 1970-04-29 Filter oder Verzögerungsleitung nach dem Oberflächenwellenprinzip

Publications (1)

Publication Number Publication Date
GB1344924A true GB1344924A (en) 1974-01-23

Family

ID=5769836

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1178471*[A Expired GB1344924A (en) 1970-04-29 1971-04-28 Filter or delay line devices employing piezo-electric ceramics

Country Status (6)

Country Link
US (1) US3713036A (enExample)
AT (1) AT311416B (enExample)
CH (1) CH522978A (enExample)
FR (1) FR2090688A5 (enExample)
GB (1) GB1344924A (enExample)
NL (1) NL7105710A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105846036A (zh) * 2016-03-29 2016-08-10 成都集思科技有限公司 一种基于三维陶瓷基板的六位数字延迟线

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805195A (en) * 1972-12-22 1974-04-16 Rca Corp Adaptive surface wave devices
US4410823A (en) * 1981-11-13 1983-10-18 Zenith Radio Corporation Surface acoustic wave device employing reflectors
US4464639A (en) * 1982-09-17 1984-08-07 Rockwell International Corporation Ferroelectric surface acoustic wave devices
EP0358795B1 (de) * 1988-09-14 1993-06-09 Siemens Aktiengesellschaft Elektroakustisches Bauelement aus piezokeramischem Material und Verfahren zum Frequenz- bzw. Laufzeitabgleich des Bauelementes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105846036A (zh) * 2016-03-29 2016-08-10 成都集思科技有限公司 一种基于三维陶瓷基板的六位数字延迟线

Also Published As

Publication number Publication date
AT311416B (de) 1973-11-12
CH522978A (de) 1972-05-15
NL7105710A (enExample) 1971-11-02
DE2021090A1 (de) 1971-11-18
DE2021090B2 (de) 1972-08-31
US3713036A (en) 1973-01-23
FR2090688A5 (enExample) 1972-01-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees