FR2283587B1 - - Google Patents

Info

Publication number
FR2283587B1
FR2283587B1 FR7518988A FR7518988A FR2283587B1 FR 2283587 B1 FR2283587 B1 FR 2283587B1 FR 7518988 A FR7518988 A FR 7518988A FR 7518988 A FR7518988 A FR 7518988A FR 2283587 B1 FR2283587 B1 FR 2283587B1
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.)
Expired
Application number
FR7518988A
Other languages
French (fr)
Other versions
FR2283587A1 (fr
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2283587A1 publication Critical patent/FR2283587A1/fr
Application granted granted Critical
Publication of FR2283587B1 publication Critical patent/FR2283587B1/fr
Granted 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
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • H03H9/02692—Arched grating lines
    • H03H9/027—U-shaped grating lines
    • 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
    • H03H9/6433—Coupled resonator filters
    • H03H9/6483—Ladder SAW filters
    • 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14517—Means for weighting
    • H03H9/1452—Means for weighting by finger overlap length, apodisation

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR7518988A 1974-08-29 1975-06-09 Circuit integre a couches minces presentant des caracteristiques de circuit-bouchon et applications aux filtres et oscillateurs en couches minces Granted FR2283587A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/501,552 US4166258A (en) 1974-08-29 1974-08-29 Thin-film integrated circuit with tank circuit characteristics and applications to thin-film filters and oscillators

Publications (2)

Publication Number Publication Date
FR2283587A1 FR2283587A1 (fr) 1976-03-26
FR2283587B1 true FR2283587B1 (online.php) 1978-02-24

Family

ID=23994026

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7518988A Granted FR2283587A1 (fr) 1974-08-29 1975-06-09 Circuit integre a couches minces presentant des caracteristiques de circuit-bouchon et applications aux filtres et oscillateurs en couches minces

Country Status (4)

Country Link
US (1) US4166258A (online.php)
JP (1) JPS581850B2 (online.php)
DE (1) DE2532646A1 (online.php)
FR (1) FR2283587A1 (online.php)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
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JPS52105752A (en) * 1976-03-01 1977-09-05 Nec Corp Surface elastic wave vibrator
JPS5925525B2 (ja) * 1979-08-31 1984-06-19 株式会社東芝 弾性表面波共振子
JPS5637721A (en) * 1979-09-03 1981-04-11 Murata Mfg Co Ltd Surface wave resonator
US4354166A (en) * 1980-10-23 1982-10-12 United Technologies Corporation Carrier concentration controlled surface acoustic wave resonator and oscillator
USRE33957E (en) * 1982-07-26 1992-06-09 Toyo Communication Equipment Co., Ltd. High frequency narrow-band multi-mode filter
GB2127249A (en) * 1982-09-20 1984-04-04 Philips Electronic Associated Acoustic surface wave device
JPS59200519A (ja) * 1983-04-28 1984-11-13 Toshiba Corp 弾性表面波共振器
US4625208A (en) * 1983-06-30 1986-11-25 X-Cyte Inc. Surface acoustic wave passive transponder having acoustic wave reflectors
AU573655B2 (en) * 1983-12-05 1988-06-16 Kay, L. Transducer array
US4599587A (en) * 1984-12-03 1986-07-08 R. F. Monolithics, Inc. Impedance element
US4577168A (en) * 1984-12-03 1986-03-18 R. F. Monolithics, Inc. Notch filter
JPH0697727B2 (ja) * 1985-03-27 1994-11-30 株式会社日立製作所 弾性表面波フィルタ
US4694266A (en) * 1986-07-29 1987-09-15 R. F. Monolithic, Inc. Notch filter
JPS63132515A (ja) * 1986-11-25 1988-06-04 Hitachi Ltd 弾性表面波複合フイルタ
JPH01260911A (ja) * 1988-04-11 1989-10-18 Hitachi Ltd 弾性表面波共振器複合形フィルタ
JP2800905B2 (ja) * 1991-10-28 1998-09-21 富士通株式会社 弾性表面波フィルタ
USRE40036E1 (en) 1991-10-28 2008-01-29 Fujitsu Limited Surface acoustic wave filter
US5287036A (en) * 1992-03-02 1994-02-15 Motorola, Inc. Method and apparatus for acoustic wave inductance
JPH06338756A (ja) 1993-05-27 1994-12-06 Fujitsu Ltd 共振子型弾性表面波フィルタ
JP3139225B2 (ja) * 1993-07-08 2001-02-26 株式会社村田製作所 弾性表面波フィルタ
JP3189508B2 (ja) * 1993-07-08 2001-07-16 株式会社村田製作所 弾性表面波フィルタ
GB2280807B (en) * 1993-08-04 1997-10-22 Advanced Saw Prod Sa Saw filter
DE4431612C2 (de) * 1993-09-06 1998-07-16 Sanyo Electric Co Akustisches Oberflächenwellenfilter
US5506552A (en) * 1993-11-05 1996-04-09 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter with multiple ground terminals
JP3375712B2 (ja) * 1994-01-12 2003-02-10 松下電器産業株式会社 弾性表面波フィルタ
JP3424971B2 (ja) * 1994-01-20 2003-07-07 松下電器産業株式会社 弾性表面波フィルタ
US5600287A (en) * 1994-02-03 1997-02-04 Motorola, Inc. Acoustic wave filter with reduced bulk-wave scattering loss, ladder filter incorporating same and method
US5471178A (en) * 1994-02-03 1995-11-28 Motorola, Inc. Ladder filter and method for producing conjugately matched impedance
JPH07297675A (ja) * 1994-04-26 1995-11-10 Fujitsu Ltd 弾性表面波共振器
US5486800A (en) * 1994-09-29 1996-01-23 Motorola, Inc. Surface acoustic wave device
US5499003A (en) * 1994-10-03 1996-03-12 Motorola, Inc. Differential saw filter including series coupled resonant/antiresonant tracks
JP3491073B2 (ja) 1994-11-10 2004-01-26 富士通株式会社 弾性表面波フィルタ
GB2296614B (en) * 1994-12-23 1999-09-15 Advanced Saw Prod Sa Saw filter
DE69625734T2 (de) * 1995-03-15 2003-05-22 Matsushita Electric Industrial Co., Ltd. Akustischer Oberflächenwellenfilter
JPH08265087A (ja) * 1995-03-22 1996-10-11 Mitsubishi Electric Corp 弾性表面波フィルタ
US5635883A (en) * 1995-08-28 1997-06-03 Motorola, Inc. Acoustic wave filter with filter-shaping element and method
US6107910A (en) * 1996-11-29 2000-08-22 X-Cyte, Inc. Dual mode transmitter/receiver and decoder for RF transponder tags
US6060815A (en) * 1997-08-18 2000-05-09 X-Cyte, Inc. Frequency mixing passive transponder
US5986382A (en) 1997-08-18 1999-11-16 X-Cyte, Inc. Surface acoustic wave transponder configuration
US6114971A (en) * 1997-08-18 2000-09-05 X-Cyte, Inc. Frequency hopping spread spectrum passive acoustic wave identification device
US6208062B1 (en) 1997-08-18 2001-03-27 X-Cyte, Inc. Surface acoustic wave transponder configuration
US20040077773A1 (en) * 2002-07-12 2004-04-22 Tavares Manuel J Low viscosity, flexible, hydrolytically stable potting compounds
US7952482B2 (en) * 2005-08-25 2011-05-31 University Of Central Florida Research Foundation, Inc. Surface acoustic wave coding for orthogonal frequency coded devices
US7777625B1 (en) * 2005-08-25 2010-08-17 University Of Central Florida Research Foundation, Inc. Weighted saw reflector gratings for orthogonal frequency coded SAW ID tags and sensors
JP2009088999A (ja) * 2007-09-28 2009-04-23 Nippon Dempa Kogyo Co Ltd 弾性波フィルタ
US8862192B2 (en) 2010-05-17 2014-10-14 Resonant Inc. Narrow band-pass filter having resonators grouped into primary and secondary sets of different order
FR2974691B1 (fr) * 2011-04-28 2019-08-30 Commissariat A L'energie Atomique Et Aux Energies Alternatives Dispositif electromecanique a ondes acoustiques comprenant une zone de transduction et une cavite etendue
US10097158B2 (en) * 2014-10-16 2018-10-09 Taiyo Yuden Co., Ltd. Acoustic wave device, filter, and duplexer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568102A (en) * 1967-07-06 1971-03-02 Litton Precision Prod Inc Split surface wave acoustic delay line
US3510674A (en) * 1967-08-09 1970-05-05 Texas Instruments Inc Low noise reactance amplifier
US3550045A (en) * 1969-06-25 1970-12-22 Zenith Radio Corp Acoustic surface wave filter devices
US3675054A (en) * 1970-12-02 1972-07-04 Texas Instruments Inc Series connection of interdigitated surface wave transducers
BE785945A (fr) * 1971-07-06 1973-01-08 Siemens Ag Filtre electrique utilisant le principe des ondes de surface
GB1362238A (en) * 1971-07-21 1974-07-30 Mullard Ltd Acoustic surface wave devices
US3716809A (en) * 1971-08-11 1973-02-13 Us Air Force Acoustic surface wave resonator
US3760204A (en) * 1972-03-01 1973-09-18 Motorola Inc Acoustic surface wave resonator
US3855548A (en) * 1973-10-18 1974-12-17 Rockwell International Corp Ultra high frequency single mode oscillation controlled by a surface acoustic wave crystal
JPS5824971B2 (ja) * 1974-07-31 1983-05-24 ハギワラデンキ カブシキガイシヤ オンキヨウデンキキヨウシンシ

Also Published As

Publication number Publication date
US4166258A (en) 1979-08-28
DE2532646A1 (de) 1976-03-11
FR2283587A1 (fr) 1976-03-26
JPS581850B2 (ja) 1983-01-13
JPS5136091A (online.php) 1976-03-26

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Legal Events

Date Code Title Description
ST Notification of lapse