DE50007219D1 - ACOUSTIC SURFACE WAVE FILTER - Google Patents

ACOUSTIC SURFACE WAVE FILTER

Info

Publication number
DE50007219D1
DE50007219D1 DE50007219T DE50007219T DE50007219D1 DE 50007219 D1 DE50007219 D1 DE 50007219D1 DE 50007219 T DE50007219 T DE 50007219T DE 50007219 T DE50007219 T DE 50007219T DE 50007219 D1 DE50007219 D1 DE 50007219D1
Authority
DE
Germany
Prior art keywords
wave filter
surface wave
acoustic surface
acoustic
filter
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 - Lifetime
Application number
DE50007219T
Other languages
German (de)
Inventor
Guenter Martin
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.)
Tele Filter Zweigniederlassung der Dover Germany GmbH
Original Assignee
Tele Filter Zweigniederlassung der Dover Germany GmbH
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 Tele Filter Zweigniederlassung der Dover Germany GmbH filed Critical Tele Filter Zweigniederlassung der Dover Germany GmbH
Priority to DE50007219T priority Critical patent/DE50007219D1/en
Priority claimed from PCT/DE2000/001808 external-priority patent/WO2000076065A1/en
Application granted granted Critical
Publication of DE50007219D1 publication Critical patent/DE50007219D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03H9/64—Filters 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 devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14547—Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14564—Shifted fingers 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14564—Shifted fingers transducers
    • H03H9/14567—Stepped-fan shaped transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE50007219T 1999-06-03 2000-05-31 ACOUSTIC SURFACE WAVE FILTER Expired - Lifetime DE50007219D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50007219T DE50007219D1 (en) 1999-06-03 2000-05-31 ACOUSTIC SURFACE WAVE FILTER

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19925798 1999-06-03
DE19943072A DE19943072B4 (en) 1999-06-03 1999-09-06 Acoustic surface wave filter
DE50007219T DE50007219D1 (en) 1999-06-03 2000-05-31 ACOUSTIC SURFACE WAVE FILTER
PCT/DE2000/001808 WO2000076065A1 (en) 1999-06-03 2000-05-31 Surface acoustic wave filter

Publications (1)

Publication Number Publication Date
DE50007219D1 true DE50007219D1 (en) 2004-09-02

Family

ID=7910356

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19943072A Expired - Fee Related DE19943072B4 (en) 1999-06-03 1999-09-06 Acoustic surface wave filter
DE50007219T Expired - Lifetime DE50007219D1 (en) 1999-06-03 2000-05-31 ACOUSTIC SURFACE WAVE FILTER

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19943072A Expired - Fee Related DE19943072B4 (en) 1999-06-03 1999-09-06 Acoustic surface wave filter

Country Status (2)

Country Link
KR (1) KR100657073B1 (en)
DE (2) DE19943072B4 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005009359B4 (en) * 2005-03-01 2014-12-11 Epcos Ag Bandpass filter
DE102013204428B4 (en) 2012-03-29 2014-08-07 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Acoustic surface wave component
DE102012206393B4 (en) 2012-04-18 2015-07-30 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Acoustic surface wave component

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2524649C3 (en) * 1975-06-03 1980-11-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Television IF filter based on the surface wave principle
CA1271817A (en) * 1986-07-16 1990-07-17 Hiromi Yatsuda Surface elastic wave filter
US4908542A (en) * 1987-06-24 1990-03-13 Unisys Saw tapered transducers

Also Published As

Publication number Publication date
KR100657073B1 (en) 2006-12-12
DE19943072A1 (en) 2000-12-21
DE19943072B4 (en) 2004-05-13
KR20020013568A (en) 2002-02-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition