BE860227A - Dispositif engendrant des ondes de surface acoustiques - Google Patents

Dispositif engendrant des ondes de surface acoustiques

Info

Publication number
BE860227A
BE860227A BE2056382A BE2056382A BE860227A BE 860227 A BE860227 A BE 860227A BE 2056382 A BE2056382 A BE 2056382A BE 2056382 A BE2056382 A BE 2056382A BE 860227 A BE860227 A BE 860227A
Authority
BE
Belgium
Prior art keywords
surface waves
device generating
acoustic surface
generating acoustic
waves
Prior art date
Application number
BE2056382A
Other languages
English (en)
Original Assignee
Gte Laboratories Inc
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 Gte Laboratories Inc filed Critical Gte Laboratories Inc
Publication of BE860227A publication Critical patent/BE860227A/fr

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
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
BE2056382A 1977-06-23 1977-10-28 Dispositif engendrant des ondes de surface acoustiques BE860227A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/810,376 US4146851A (en) 1977-06-23 1977-06-23 Acoustic surface wave device

Publications (1)

Publication Number Publication Date
BE860227A true BE860227A (fr) 1978-02-15

Family

ID=25203714

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2056382A BE860227A (fr) 1977-06-23 1977-10-28 Dispositif engendrant des ondes de surface acoustiques

Country Status (4)

Country Link
US (1) US4146851A (fr)
BE (1) BE860227A (fr)
DE (1) DE2743071A1 (fr)
FR (1) FR2395643A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937605B2 (ja) * 1979-09-25 1984-09-11 富士通株式会社 弾性表面波素子
JPS5693414A (en) * 1979-12-27 1981-07-29 Fujitsu Ltd Elastic surface wave element
US4321567A (en) * 1980-03-24 1982-03-23 Raytheon Company Combining series sections weighting with withdrawal weighting in SAW transducers
US4392116A (en) * 1980-10-14 1983-07-05 Zenith Radio Corporation Triple transit cancellation
JPS57127321A (en) * 1981-01-30 1982-08-07 Fujitsu Ltd Surface acoustic wave filter
EP0097642A1 (fr) * 1981-12-14 1984-01-11 Gte Products Corporation Cire acoustique sur un dispositif a ondes de surface
DE3209962A1 (de) * 1982-03-18 1983-09-29 Siemens AG, 1000 Berlin und 8000 München Mit akustischen wellen arbeitendes elektronisches bauelement
WO1985003816A1 (fr) * 1984-02-21 1985-08-29 Gte Products Corporation Filtre d'ondes acoustiques en surface ayant une configuration triangulaire
GB2157522B (en) * 1984-04-09 1987-08-19 Philips Electronic Associated Electrical filter comprising an acoustic surface wave device, and method of manufacturing such a filter
US4870312A (en) * 1987-02-19 1989-09-26 Hazeltine Corporation Surface wave device having anti-reflective shield
US5113115A (en) * 1991-06-19 1992-05-12 The United States Of America As Represented By The Secretary Of The Army Saw slanted array correlator with amplitude error compensating polymer reflective array grating
WO2015123668A1 (fr) 2014-02-14 2015-08-20 University Of Southern California Annulation à base d'hybrides en présence d'une désadaptation d'antenne
US9866201B2 (en) * 2015-09-08 2018-01-09 Abtum Inc. All-acoustic duplexers using directional couplers
US9912326B2 (en) 2015-09-08 2018-03-06 Abtum Inc. Method for tuning feed-forward canceller
US9762416B2 (en) 2015-09-08 2017-09-12 Abtum Inc. Reflection coefficient reader
US10581650B2 (en) 2015-09-08 2020-03-03 Qorvo Us, Inc. Enhancing isolation in radio frequency multiplexers
US9755668B2 (en) 2015-09-30 2017-09-05 Abtum Inc. Radio frequency complex reflection coefficient reader
US10038458B2 (en) 2015-10-06 2018-07-31 Abtum Inc. Reflection-based radio-frequency multiplexers
US10476530B2 (en) 2015-10-12 2019-11-12 Qorvo Us, Inc. Hybrid-coupler-based radio frequency multiplexers
CN210201797U (zh) 2016-09-21 2020-03-27 Qorvo美国公司 射频双工器和具有增强隔离的可调谐射频双工器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662293A (en) * 1971-03-17 1972-05-09 Zenith Radio Corp Acoustic-wave transmitting device
US3727155A (en) * 1972-03-20 1973-04-10 Zenith Radio Corp Acoustic surface wave filter
US4038614A (en) * 1975-06-16 1977-07-26 Hughes Aircraft Company Fractional efficiency coupler
US4048594A (en) * 1976-01-02 1977-09-13 Hughes Aircraft Company Surface acoustic wave filter

Also Published As

Publication number Publication date
US4146851A (en) 1979-03-27
FR2395643A1 (fr) 1979-01-19
DE2743071A1 (de) 1979-01-11
FR2395643B3 (fr) 1981-02-20

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GTE LABORATORIES INC.

Effective date: 19921031