ATE382985T1 - Drahtloses übertragungssystem mit einphasigen unidirektionalen akustischen oberflächenwellenwandlertechniken - Google Patents

Drahtloses übertragungssystem mit einphasigen unidirektionalen akustischen oberflächenwellenwandlertechniken

Info

Publication number
ATE382985T1
ATE382985T1 AT01113310T AT01113310T ATE382985T1 AT E382985 T1 ATE382985 T1 AT E382985T1 AT 01113310 T AT01113310 T AT 01113310T AT 01113310 T AT01113310 T AT 01113310T AT E382985 T1 ATE382985 T1 AT E382985T1
Authority
AT
Austria
Prior art keywords
saw
idt
spudt
type
single phase
Prior art date
Application number
AT01113310T
Other languages
English (en)
Inventor
Colin K Campbell
Peter J Edmonson
Original Assignee
Research In Motion Ltd
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 Research In Motion Ltd filed Critical Research In Motion Ltd
Application granted granted Critical
Publication of ATE382985T1 publication Critical patent/ATE382985T1/de

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
    • H03H9/30—Time-delay networks
    • H03H9/42—Time-delay networks using surface acoustic waves
    • H03H9/44—Frequency dependent delay lines, e.g. dispersive delay lines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
    • G01S13/755—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using delay lines, e.g. acoustic delay 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
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • H03H9/0274—Intra-transducers 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
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14502—Surface acoustic wave [SAW] transducers for a particular purpose
    • H03H9/14505—Unidirectional SAW transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
AT01113310T 2000-06-02 2001-05-31 Drahtloses übertragungssystem mit einphasigen unidirektionalen akustischen oberflächenwellenwandlertechniken ATE382985T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20915300P 2000-06-02 2000-06-02

Publications (1)

Publication Number Publication Date
ATE382985T1 true ATE382985T1 (de) 2008-01-15

Family

ID=22777568

Family Applications (2)

Application Number Title Priority Date Filing Date
AT07124123T ATE501550T1 (de) 2000-06-02 2001-05-31 Drahtloses kommunikationssystem unter verwendung von einphasigen, unidirektionalen akustischen oberflächenwellenwandlerverfahren
AT01113310T ATE382985T1 (de) 2000-06-02 2001-05-31 Drahtloses übertragungssystem mit einphasigen unidirektionalen akustischen oberflächenwellenwandlertechniken

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT07124123T ATE501550T1 (de) 2000-06-02 2001-05-31 Drahtloses kommunikationssystem unter verwendung von einphasigen, unidirektionalen akustischen oberflächenwellenwandlerverfahren

Country Status (5)

Country Link
US (1) US6462698B2 (de)
EP (2) EP1901427B1 (de)
AT (2) ATE501550T1 (de)
CA (1) CA2349128C (de)
DE (2) DE60144203D1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6489950B1 (en) 1998-06-26 2002-12-03 Research In Motion Limited Hand-held electronic device with auxiliary input device
US6278442B1 (en) 1998-06-26 2001-08-21 Research In Motion Limited Hand-held electronic device with a keyboard optimized for use with the thumbs
US7705828B2 (en) 1998-06-26 2010-04-27 Research In Motion Limited Dual-mode mobile communication device
US6825794B2 (en) * 2000-06-02 2004-11-30 Research In Motion Limited Wireless communication system using surface acoustic wave (SAW) second harmonic techniques
US6717983B1 (en) * 2000-09-19 2004-04-06 Kohji Toda Ultrasonic coding modem for digital network communication
EP1684477B1 (de) 2001-06-18 2008-12-03 Research In Motion Limited System und Verfahren zur Verwaltung von Nachrichtenanlagen
US20030016735A1 (en) * 2001-07-23 2003-01-23 Edmonson Peter J. Communication system for two-way exchange of information
US7084768B2 (en) * 2002-03-21 2006-08-01 Rf Saw Components, Inc. Anti-collision interrogation pulse focusing system for use with multiple surface acoustic wave identification tags and method of operation thereof
US6759789B2 (en) * 2002-10-18 2004-07-06 Rf Saw Components, Inc. Surface acoustic wave identification tag having an interdigital transducer adapted for code discrimination and methods of operation and manufacture thereof
JP2004260793A (ja) * 2003-02-04 2004-09-16 Murata Mfg Co Ltd 弾性表面波フィルタ
US6907787B2 (en) * 2003-04-30 2005-06-21 Honeywell International Inc. Surface acoustic wave pressure sensor with microstructure sensing elements
US7158763B2 (en) * 2003-05-02 2007-01-02 P. J. Edmonson Ltd. Multi-IDT SAW hybrid communication system
US7082835B2 (en) * 2003-06-18 2006-08-01 Honeywell International Inc. Pressure sensor apparatus and method
EP1678823A2 (de) * 2003-10-08 2006-07-12 RF Saw Components, Incorporated Unidirektionaler einphasen-oberflächenwellenwandler und verbesserte reflektoren
US9097789B2 (en) * 2012-03-13 2015-08-04 Duke Loi Apparatus and method for electromagnetic wave structure modulation
KR102417610B1 (ko) 2016-03-03 2022-07-07 삼성전자주식회사 근거리 초고주파 레이더를 이용한 코드 판독 방법 및 장치

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247903A (en) * 1979-01-08 1981-01-27 United Technologies Corporation Monolithic isolated gate FET saw signal processor
US4746830A (en) 1986-03-14 1988-05-24 Holland William R Electronic surveillance and identification
US4749964A (en) * 1986-12-08 1988-06-07 R. F. Monolithics, Inc. Superregenerative detector having a saw device in the feedback circuit
JP3254779B2 (ja) 1993-01-05 2002-02-12 株式会社村田製作所 多電極形弾性表面波装置
JP3484237B2 (ja) * 1994-09-28 2004-01-06 日本碍子株式会社 弾性表面波デバイス
US5835990A (en) 1995-06-16 1998-11-10 Northern Telecom Limited Longitudinally coupled double mode surface wave resonators
US5831492A (en) * 1995-09-15 1998-11-03 Sawtek Inc. Weighted tapered spudt saw device
JPH09261121A (ja) 1996-03-22 1997-10-03 Kazuo Tsubouchi 符号分割多重通信装置
EP0800270B1 (de) 1996-04-02 2003-09-10 Matsushita Electric Industrial Co., Ltd. Akustischer Oberflächenwellenfilter
DE19638370C2 (de) 1996-09-19 2001-06-13 Epcos Ag Oberflächenwellenfilter für unsymmetrische/symmetrische und symmetrische/symmetrische Betriebsweise
FR2762458B1 (fr) 1997-04-18 1999-07-09 Thomson Csf Dispositif a ondes acoustiques de surface a couplage par proximite a entrees/sorties differentielles
US5896071A (en) * 1997-05-15 1999-04-20 Northern Telecom Limited Surface wave device balun resonator filters
DE19724258C2 (de) 1997-06-09 2002-10-10 Epcos Ag Dualmode-Oberflächenwellenfilter
DE19907640A1 (de) * 1998-03-25 1999-10-07 Dresden Ev Inst Festkoerper Akustisches Oberflächenwellenbauelement
JP2000036722A (ja) * 1998-05-11 2000-02-02 Tdk Corp 弾性表面波装置の設計方法および弾性表面波装置
JP3291255B2 (ja) * 1998-09-22 2002-06-10 日本碍子株式会社 弾性表面波デバイス
US6242844B1 (en) * 1999-12-28 2001-06-05 Cts Corporation Wide-band single-phase unidirectional transducer

Also Published As

Publication number Publication date
CA2349128C (en) 2006-07-11
ATE501550T1 (de) 2011-03-15
EP1160974A2 (de) 2001-12-05
DE60144203D1 (de) 2011-04-21
DE60132131D1 (de) 2008-02-14
EP1901427B1 (de) 2011-03-09
DE60132131T2 (de) 2008-12-11
EP1160974A3 (de) 2002-02-20
CA2349128A1 (en) 2001-12-02
EP1901427A1 (de) 2008-03-19
US20010053179A1 (en) 2001-12-20
US6462698B2 (en) 2002-10-08
EP1160974B1 (de) 2008-01-02

Similar Documents

Publication Publication Date Title
ATE382985T1 (de) Drahtloses übertragungssystem mit einphasigen unidirektionalen akustischen oberflächenwellenwandlertechniken
CA2348723A1 (en) A wireless communication system using surface acoustic wave (saw) second harmonic techniques
US9853624B2 (en) SAW resonator with resonant cavities
KR100951482B1 (ko) 대역 차단 필터
DE60128311D1 (de) Adaptive Abstimmungsvorrichtung und Verfahren für ein drahtloses Kommunikationsgerät
EP0867826A3 (de) Fernschaltfühlerschaltung mit einem RF-Transceiver in Kombination mit einem SAW Chirp-Prozessor
EP0829953A3 (de) Frequenzvervielfacher und Spannungsgesteuerter Oszillator
JPWO1996024198A1 (ja) スペクトラム拡散通信装置及び通信システム
KR100431767B1 (ko) 슬릿탄성파를 이용한 압력 센서
ATE480908T1 (de) Hf-schalter für eine drahtlose kommunikationsvorrichtung
Li et al. Thin-film lithium niobate acoustic delay line oscillators
US4633185A (en) Chirp signal generator for pulse compression radar
Abughannam et al. Improving Co-Channel Interference Robustness In Direct Detection Receivers Using A Surface Acoustic Wave (SAW) Correlator
EP1154559A3 (de) Oszillator
Shen et al. High-performance MEMS bandpass filters for acoustic signal processing applications
JPH0524066Y2 (de)
JP2001217681A (ja) 弾性表面波コンボルバ
RU2006137971A (ru) Антиколлизионная система радиочастотной идентификации

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties