JPS5717217A - Cavity type elastic surface wave resonator - Google Patents

Cavity type elastic surface wave resonator

Info

Publication number
JPS5717217A
JPS5717217A JP9238580A JP9238580A JPS5717217A JP S5717217 A JPS5717217 A JP S5717217A JP 9238580 A JP9238580 A JP 9238580A JP 9238580 A JP9238580 A JP 9238580A JP S5717217 A JPS5717217 A JP S5717217A
Authority
JP
Japan
Prior art keywords
nearest
transducer
elastic surface
surface wave
wave resonator
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
JP9238580A
Other languages
Japanese (ja)
Inventor
Ryuji Habuka
Shuji Urabe
Kazuoki Yuki
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9238580A priority Critical patent/JPS5717217A/en
Publication of JPS5717217A publication Critical patent/JPS5717217A/en
Pending 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 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 increase the resonance sharpness, by selecting the center interval of an electrode finger to a specified value. CONSTITUTION:The l1, l2 are selected to meet equations, where l1 is a central distance between an electrode finger 8 nearest a reflector 6 in the electrodes 8 of electrodes 9, 10 of a transducer 3 and a stripe-shaped body 11 nearest the transducer 3 in the stripe-shaped body 11 of the reflector 6, and l2 is a central distance between the electrode finger 8 nearest a reflector 7 in the electrode fingers 8 of the electrodes 8, 9 if the transducer 3 and the stripe-shaped body 11 nearest the transducer 3. In equations, lambda is the wavelength of elastic surface waves in resonance frequency, and (n), (m) are natural numbers.
JP9238580A 1980-07-07 1980-07-07 Cavity type elastic surface wave resonator Pending JPS5717217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9238580A JPS5717217A (en) 1980-07-07 1980-07-07 Cavity type elastic surface wave resonator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9238580A JPS5717217A (en) 1980-07-07 1980-07-07 Cavity type elastic surface wave resonator

Publications (1)

Publication Number Publication Date
JPS5717217A true JPS5717217A (en) 1982-01-28

Family

ID=14052950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9238580A Pending JPS5717217A (en) 1980-07-07 1980-07-07 Cavity type elastic surface wave resonator

Country Status (1)

Country Link
JP (1) JPS5717217A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6212206A (en) * 1985-07-10 1987-01-21 Hitachi Ltd Surface acoustic wave resonator
JPH02220510A (en) * 1989-02-21 1990-09-03 Matsushima Kogyo Co Ltd Saw resonator
US5831493A (en) * 1995-08-14 1998-11-03 Murata Manufacturing Co., Ltd. Surface acoustic wave ladder filter utilizing a generated spurious component of the parallel arm
US6025763A (en) * 1996-03-14 2000-02-15 Oki Electric Industry Co., Ltd. Resonator-type surface-acoustic-wave ladder filter with improved upper stopband attenuation and reduced insertion loss

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6212206A (en) * 1985-07-10 1987-01-21 Hitachi Ltd Surface acoustic wave resonator
JPH02220510A (en) * 1989-02-21 1990-09-03 Matsushima Kogyo Co Ltd Saw resonator
US5831493A (en) * 1995-08-14 1998-11-03 Murata Manufacturing Co., Ltd. Surface acoustic wave ladder filter utilizing a generated spurious component of the parallel arm
US6025763A (en) * 1996-03-14 2000-02-15 Oki Electric Industry Co., Ltd. Resonator-type surface-acoustic-wave ladder filter with improved upper stopband attenuation and reduced insertion loss

Similar Documents

Publication Publication Date Title
JPS5799813A (en) Surface acoustic wave resonator
JPS5717217A (en) Cavity type elastic surface wave resonator
JPS6454805A (en) Surface acoustic wave resonator
JPS5610724A (en) Elastic surface wave transducer
JPS57194615A (en) Matching circuit for surface acoustic wave
JPS5566118A (en) Elastic surface wave device
JPS5773514A (en) Surface acoustic wave filter
JPS5412542A (en) Elastic surface wave unit
JPS56122217A (en) Elastic surface wave oscillator
JPS53123051A (en) Filter for surface slip wave
JPS6482706A (en) Surface acoustic wave narrow-band filter
JPS5612116A (en) Elastic surface wave filter
JPS6484909A (en) Surface acoustic wave device
JPS57129514A (en) Coupler of surface acoustic wave
JPS56136017A (en) Elastic surface wave device and its manufacture
JPS5765917A (en) Surface acoustic wave device
JPS5711520A (en) Elastic surface wave resonator
JPS5768921A (en) Thickness slip quartz oscillator
JPS5711519A (en) Constituent for elastic surface wave resonator
JPS5684019A (en) Surface elastic wave resonator
JPS5642419A (en) Surface elastic wave resonator
JPS57199316A (en) Surface acoustic wave filter
JPS53114644A (en) Elastic surface wave filter
JPS56149814A (en) Elastic surface wave filter
JPS5332690A (en) Tuning fork type piezoelectric vibrator