JPS54143091A - Elastic surface wave device - Google Patents

Elastic surface wave device

Info

Publication number
JPS54143091A
JPS54143091A JP5181178A JP5181178A JPS54143091A JP S54143091 A JPS54143091 A JP S54143091A JP 5181178 A JP5181178 A JP 5181178A JP 5181178 A JP5181178 A JP 5181178A JP S54143091 A JPS54143091 A JP S54143091A
Authority
JP
Japan
Prior art keywords
wave
different
piezoelectric body
elastic
adhesives
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.)
Pending
Application number
JP5181178A
Other languages
Japanese (ja)
Inventor
Hiroshi Ikushima
Toyota Noguchi
Tsuneo Danno
Hiroshi Kitazaki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5181178A priority Critical patent/JPS54143091A/en
Publication of JPS54143091A publication Critical patent/JPS54143091A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/36—Devices for manipulating acoustic surface waves

Abstract

PURPOSE:To remove an undesirable elastic volume wave by stacking two kinds of adhesives, different in ultrasonic physical properties, into a single layer for the support of a piezoelectric body on a substrate. CONSTITUTION:Onto piezoelectric body 1 which receives and sends a Brewstein- Griaeff wave through piezoelectric effect, cross-finger-shaped electrodes IDT2 are provided and piezolelectirc body 1 has polarization axes in palallel to the length direction of fingers of IDTs 2 and 3. Then, piezoelectric body 1 is bonded to support board 5 by adhesives 4 and 6 of high-molecule synthetic resin. Layers 4 and 6 are different in either or both acoustic impedance or/and elastic modulus. The ultrasonic physical properties of a high-molucule material as a base material are extremely complex and unknown. A Brewster-Epstein wave is different with a Rayleigh wave and similar to a vlume wave; although an undesirable elastic volume wave is easy to generate, undesired signals can be removed because of composite layers 4 and 6 and the need for groove work for the reverse surface of the elastic body is eliminated.
JP5181178A 1978-04-28 1978-04-28 Elastic surface wave device Pending JPS54143091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5181178A JPS54143091A (en) 1978-04-28 1978-04-28 Elastic surface wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5181178A JPS54143091A (en) 1978-04-28 1978-04-28 Elastic surface wave device

Publications (1)

Publication Number Publication Date
JPS54143091A true JPS54143091A (en) 1979-11-07

Family

ID=12897286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5181178A Pending JPS54143091A (en) 1978-04-28 1978-04-28 Elastic surface wave device

Country Status (1)

Country Link
JP (1) JPS54143091A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687912A (en) * 1979-12-20 1981-07-17 Toshiba Corp Elastic surface wave filter
JPS58119219A (en) * 1982-01-11 1983-07-15 Hitachi Ltd Surface acoustic wave device
JP2011254354A (en) * 2010-06-03 2011-12-15 Ngk Insulators Ltd Composite substrate and surface acoustic wave device using the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687912A (en) * 1979-12-20 1981-07-17 Toshiba Corp Elastic surface wave filter
JPS6221408B2 (en) * 1979-12-20 1987-05-12 Tokyo Shibaura Electric Co
JPS58119219A (en) * 1982-01-11 1983-07-15 Hitachi Ltd Surface acoustic wave device
JP2011254354A (en) * 2010-06-03 2011-12-15 Ngk Insulators Ltd Composite substrate and surface acoustic wave device using the same

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