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FR2685580B1 - Filtre a ondes de surface. - Google Patents

Filtre a ondes de surface.

Info

Publication number
FR2685580B1
FR2685580B1 FR9116047A FR9116047A FR2685580B1 FR 2685580 B1 FR2685580 B1 FR 2685580B1 FR 9116047 A FR9116047 A FR 9116047A FR 9116047 A FR9116047 A FR 9116047A FR 2685580 B1 FR2685580 B1 FR 2685580B1
Authority
FR
France
Prior art keywords
wave filter
surface wave
filter
wave
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
FR9116047A
Other languages
English (en)
Other versions
FR2685580A1 (fr
Inventor
Martine Doisy
Jean-Michel Hode
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR9116047A priority Critical patent/FR2685580B1/fr
Priority to PCT/FR1992/001106 priority patent/WO1993013595A1/fr
Publication of FR2685580A1 publication Critical patent/FR2685580A1/fr
Application granted granted Critical
Publication of FR2685580B1 publication Critical patent/FR2685580B1/fr
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 elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6426—Combinations of the characteristics of different transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR9116047A 1991-12-23 1991-12-23 Filtre a ondes de surface. Expired - Lifetime FR2685580B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9116047A FR2685580B1 (fr) 1991-12-23 1991-12-23 Filtre a ondes de surface.
PCT/FR1992/001106 WO1993013595A1 (fr) 1991-12-23 1992-11-27 Filtre a ondes de surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9116047A FR2685580B1 (fr) 1991-12-23 1991-12-23 Filtre a ondes de surface.

Publications (2)

Publication Number Publication Date
FR2685580A1 FR2685580A1 (fr) 1993-06-25
FR2685580B1 true FR2685580B1 (fr) 1994-02-04

Family

ID=9420416

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9116047A Expired - Lifetime FR2685580B1 (fr) 1991-12-23 1991-12-23 Filtre a ondes de surface.

Country Status (2)

Country Link
FR (1) FR2685580B1 (fr)
WO (1) WO1993013595A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5426339A (en) * 1994-04-01 1995-06-20 Rf Monolithics, Inc. Surface acoustic wave devices with mode changing characteristics
GB2289181B (en) * 1994-04-25 1998-08-12 Advanced Saw Prod Sa Saw filter
GB2289180B (en) * 1994-04-25 1998-08-12 Advanced Saw Prod Sa Saw filter
US5646584A (en) * 1994-04-25 1997-07-08 Advanced Saw Products Sa Saw filter including electrodes of opposing polarity
US5545940A (en) * 1994-11-07 1996-08-13 Rf Monolithics, Inc. Multitrack transversely folded surface acoustic wave structure
DE19547470C2 (de) * 1995-12-19 1998-01-15 Siemens Matsushita Components Mit akustischen Oberflächenwellen arbeitendes Filter-OFW-Filter
RU98123756A (ru) * 1998-12-29 2000-10-20 Моторола Инк. (US) Трехканальный фильтр на поверхностных акустических волнах

Also Published As

Publication number Publication date
FR2685580A1 (fr) 1993-06-25
WO1993013595A1 (fr) 1993-07-08

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Legal Events

Date Code Title Description
CD Change of name or company name
CD Change of name or company name
TP Transmission of property
TP Transmission of property