JPS5799813A - Surface acoustic wave resonator - Google Patents
Surface acoustic wave resonatorInfo
- Publication number
- JPS5799813A JPS5799813A JP17524280A JP17524280A JPS5799813A JP S5799813 A JPS5799813 A JP S5799813A JP 17524280 A JP17524280 A JP 17524280A JP 17524280 A JP17524280 A JP 17524280A JP S5799813 A JPS5799813 A JP S5799813A
- Authority
- JP
- Japan
- Prior art keywords
- transducer
- periodical
- denoted
- electrodes
- electrode
- 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.)
- Granted
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
- H03H9/25—Constructional features of resonators using surface acoustic waves
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
PURPOSE:To make the device small in size and improve the Q value, by optimizing the ratio of the electrode period of a transducer to the electrode period of a reflector and by making the center frequency of the reflector coincident with that of the transducer. CONSTITUTION:Surface acoustic wave reflectors 2 and 3 on a piezoelectric substrate 1 have periodical grooves of a depth hgR besides periodical electrodes of a thickness hmR, and a transducer 4 has perodical electrodes of a thickness hmT and periodical grooves of a depth hgT. The electrode period of reflectors 2 and 3, the electrode period of the transducer, the frequency lowering quantity of reflectors based on periodical perturbation determined by a resonance wavelength lambda, and the frequency lowering quantity of the transducer are denoted as LR, LT, C2R, and C2T, respectively. The elastic mismatching between the electrode part and the non-electrode part of the transducer is denoted as C1T, and a constant qT determined by C1T and a number N of pairs of electrodes of the transducer is denoted as qT=piC1TN. Thus, LT/LR is determined by expression 1 for the purpose of making frequencies fR and fT coincident with each other.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17524280A JPS5799813A (en) | 1980-12-13 | 1980-12-13 | Surface acoustic wave resonator |
GB8116284A GB2078042B (en) | 1980-06-13 | 1981-05-28 | Surface acoustic wave resonator |
US06/267,680 US4387355A (en) | 1980-06-13 | 1981-05-28 | Surface acoustic wave resonator |
FR8111388A FR2484735A1 (en) | 1980-06-13 | 1981-06-10 | SURFACE ACOUSTIC WAVE RESONATOR |
NLAANVRAGE8102818,A NL187091C (en) | 1980-06-13 | 1981-06-11 | ACOUSTIC SURFACE WAVE RESONATOR. |
DE19813123410 DE3123410A1 (en) | 1980-06-13 | 1981-06-12 | ACOUSTIC SURFACE WAVE RESONATOR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17524280A JPS5799813A (en) | 1980-12-13 | 1980-12-13 | Surface acoustic wave resonator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5799813A true JPS5799813A (en) | 1982-06-21 |
JPS6147009B2 JPS6147009B2 (en) | 1986-10-17 |
Family
ID=15992740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17524280A Granted JPS5799813A (en) | 1980-06-13 | 1980-12-13 | Surface acoustic wave resonator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5799813A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61251223A (en) * | 1985-04-27 | 1986-11-08 | Pioneer Electronic Corp | Surface acoustic wave resonator |
DE4408989A1 (en) * | 1993-05-27 | 1994-12-01 | Fujitsu Ltd | Surface acoustic wave filter of the resonator type for reducing the signal strength of an interference spike |
WO2006137464A1 (en) * | 2005-06-21 | 2006-12-28 | Epson Toyocom Corporation | Elastic surface wave device, module, and oscillator |
WO2010098139A1 (en) * | 2009-02-27 | 2010-09-02 | エプソントヨコム株式会社 | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic device |
JP2012004897A (en) * | 2010-06-17 | 2012-01-05 | Seiko Epson Corp | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic device |
JP2012060422A (en) * | 2010-09-09 | 2012-03-22 | Seiko Epson Corp | Surface acoustic wave device, electronic apparatus and sensor device |
JP2012060418A (en) * | 2010-09-09 | 2012-03-22 | Seiko Epson Corp | Surface acoustic wave device, electronic apparatus and sensor device |
US8305162B2 (en) | 2009-02-27 | 2012-11-06 | Seiko Epson Corporation | Surface acoustic wave resonator and surface acoustic wave oscillator |
US8471434B2 (en) | 2010-08-26 | 2013-06-25 | Seiko Epson Corporation | Surface acoustic wave device, surface acoustic wave oscillator, and electronic apparatus |
US8476984B2 (en) | 2010-12-07 | 2013-07-02 | Seiko Epson Corporation | Vibration device, oscillator, and electronic apparatus |
US8598766B2 (en) | 2010-12-03 | 2013-12-03 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus |
US8692439B2 (en) | 2010-08-26 | 2014-04-08 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic device |
US8928432B2 (en) | 2010-08-26 | 2015-01-06 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus |
JP2015029358A (en) * | 2014-10-29 | 2015-02-12 | セイコーエプソン株式会社 | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic device |
US9048806B2 (en) | 2010-09-09 | 2015-06-02 | Seiko Epson Corporation | Surface acoustic wave device, electronic apparatus, and sensor apparatus |
-
1980
- 1980-12-13 JP JP17524280A patent/JPS5799813A/en active Granted
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61251223A (en) * | 1985-04-27 | 1986-11-08 | Pioneer Electronic Corp | Surface acoustic wave resonator |
DE4408989A1 (en) * | 1993-05-27 | 1994-12-01 | Fujitsu Ltd | Surface acoustic wave filter of the resonator type for reducing the signal strength of an interference spike |
US6255916B1 (en) | 1993-05-27 | 2001-07-03 | Fujitsu Limited | Resonator-type surface-acoustic-wave filter for reducing the signal strength of a spurious peak |
WO2006137464A1 (en) * | 2005-06-21 | 2006-12-28 | Epson Toyocom Corporation | Elastic surface wave device, module, and oscillator |
US7750533B2 (en) | 2005-06-21 | 2010-07-06 | Epson Toyocom Corporation | Surface acoustic wave (SAW) device, module and oscillator for improving a Q factor |
WO2010098139A1 (en) * | 2009-02-27 | 2010-09-02 | エプソントヨコム株式会社 | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic device |
JP5257799B2 (en) * | 2009-02-27 | 2013-08-07 | セイコーエプソン株式会社 | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic device |
US9762207B2 (en) | 2009-02-27 | 2017-09-12 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic instrument |
US8952596B2 (en) | 2009-02-27 | 2015-02-10 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic instrument |
US8305162B2 (en) | 2009-02-27 | 2012-11-06 | Seiko Epson Corporation | Surface acoustic wave resonator and surface acoustic wave oscillator |
US8933612B2 (en) | 2009-02-27 | 2015-01-13 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic instrument |
JP2014112949A (en) * | 2009-02-27 | 2014-06-19 | Seiko Epson Corp | Surface acoustic wave resonator and surface acoustic wave oscillator |
US8502625B2 (en) | 2009-02-27 | 2013-08-06 | Seiko Epson Corporation | Surface acoustic wave resonator and surface acoustic wave oscillator |
JP2012004897A (en) * | 2010-06-17 | 2012-01-05 | Seiko Epson Corp | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic device |
US9088263B2 (en) | 2010-06-17 | 2015-07-21 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus |
US9537464B2 (en) | 2010-06-17 | 2017-01-03 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus |
US8692439B2 (en) | 2010-08-26 | 2014-04-08 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic device |
US8928432B2 (en) | 2010-08-26 | 2015-01-06 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus |
US8471434B2 (en) | 2010-08-26 | 2013-06-25 | Seiko Epson Corporation | Surface acoustic wave device, surface acoustic wave oscillator, and electronic apparatus |
JP2012060418A (en) * | 2010-09-09 | 2012-03-22 | Seiko Epson Corp | Surface acoustic wave device, electronic apparatus and sensor device |
US9048806B2 (en) | 2010-09-09 | 2015-06-02 | Seiko Epson Corporation | Surface acoustic wave device, electronic apparatus, and sensor apparatus |
JP2012060422A (en) * | 2010-09-09 | 2012-03-22 | Seiko Epson Corp | Surface acoustic wave device, electronic apparatus and sensor device |
US8598766B2 (en) | 2010-12-03 | 2013-12-03 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus |
US8791621B2 (en) | 2010-12-03 | 2014-07-29 | Seiko Epson Corporation | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus |
US8476984B2 (en) | 2010-12-07 | 2013-07-02 | Seiko Epson Corporation | Vibration device, oscillator, and electronic apparatus |
JP2015029358A (en) * | 2014-10-29 | 2015-02-12 | セイコーエプソン株式会社 | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic device |
Also Published As
Publication number | Publication date |
---|---|
JPS6147009B2 (en) | 1986-10-17 |
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