FR2193289A1 - - Google Patents

Info

Publication number
FR2193289A1
FR2193289A1 FR7326193A FR7326193A FR2193289A1 FR 2193289 A1 FR2193289 A1 FR 2193289A1 FR 7326193 A FR7326193 A FR 7326193A FR 7326193 A FR7326193 A FR 7326193A FR 2193289 A1 FR2193289 A1 FR 2193289A1
Authority
FR
France
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.)
Granted
Application number
FR7326193A
Other languages
French (fr)
Other versions
FR2193289B1 (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 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 FR2193289A1 publication Critical patent/FR2193289A1/fr
Application granted granted Critical
Publication of FR2193289B1 publication Critical patent/FR2193289B1/fr
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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02992—Details of bus bars, contact pads or other electrical connections for finger electrodes
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02874—Means for compensation or elimination of undesirable effects of direct coupling between input and output transducers
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02913—Measures for shielding against electromagnetic fields

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR7326193A 1972-07-18 1973-07-17 Expired FR2193289B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722235233 DE2235233C3 (en) 1972-07-18 1972-07-18 Filter or delay line based on the surface wave principle

Publications (2)

Publication Number Publication Date
FR2193289A1 true FR2193289A1 (en) 1974-02-15
FR2193289B1 FR2193289B1 (en) 1978-02-17

Family

ID=5850962

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7326193A Expired FR2193289B1 (en) 1972-07-18 1973-07-17

Country Status (7)

Country Link
AT (1) AT339957B (en)
BE (1) BE802498A (en)
DE (1) DE2235233C3 (en)
FR (1) FR2193289B1 (en)
GB (1) GB1441602A (en)
IT (1) IT993581B (en)
NL (1) NL7307898A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296391A (en) * 1977-10-28 1981-10-20 Hitachi, Ltd. Surface-acoustic-wave filter for channel selection system of television receiver
DE3517254A1 (en) * 1985-05-13 1986-11-13 Siemens AG, 1000 Berlin und 8000 München ELECTRIC FILTER WORKING WITH ACOUSTIC SHAFTS
US4870312A (en) * 1987-02-19 1989-09-26 Hazeltine Corporation Surface wave device having anti-reflective shield
JP3384403B2 (en) * 2001-03-01 2003-03-10 株式会社村田製作所 Surface acoustic wave device, communication device
DE102010008774B4 (en) * 2010-02-22 2015-07-23 Epcos Ag Microacoustic filter with compensated crosstalk and compensation method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573673A (en) * 1969-01-08 1971-04-06 Zenith Radio Corp Acoustic surface wave filters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573673A (en) * 1969-01-08 1971-04-06 Zenith Radio Corp Acoustic surface wave filters

Also Published As

Publication number Publication date
DE2235233A1 (en) 1974-01-31
BE802498A (en) 1973-11-16
FR2193289B1 (en) 1978-02-17
IT993581B (en) 1975-09-30
NL7307898A (en) 1974-01-22
AT339957B (en) 1977-11-25
GB1441602A (en) 1976-07-07
DE2235233B2 (en) 1977-07-14
DE2235233C3 (en) 1978-03-02
ATA415573A (en) 1977-03-15

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Legal Events

Date Code Title Description
ST Notification of lapse