JPS5252348A - Piezoelectric band erasing filter - Google Patents

Piezoelectric band erasing filter

Info

Publication number
JPS5252348A
JPS5252348A JP12872875A JP12872875A JPS5252348A JP S5252348 A JPS5252348 A JP S5252348A JP 12872875 A JP12872875 A JP 12872875A JP 12872875 A JP12872875 A JP 12872875A JP S5252348 A JPS5252348 A JP S5252348A
Authority
JP
Japan
Prior art keywords
piezoelectric
filter
band erasing
piezoelectric band
erasing filter
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
JP12872875A
Other languages
Japanese (ja)
Inventor
Takaya Watanabe
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12872875A priority Critical patent/JPS5252348A/en
Publication of JPS5252348A publication Critical patent/JPS5252348A/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
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic crystal filters
    • H03H9/566—Electric coupling means therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

PURPOSE:The piezoelectric passing filter is connected to capacity of bridge T-type element serial branch line in order to obtain a piezoelectric band erasing filter which features a comparatively broad cut-off region as well as an excellent characteristics with a simple structure.
JP12872875A 1975-10-24 1975-10-24 Piezoelectric band erasing filter Pending JPS5252348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12872875A JPS5252348A (en) 1975-10-24 1975-10-24 Piezoelectric band erasing filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12872875A JPS5252348A (en) 1975-10-24 1975-10-24 Piezoelectric band erasing filter

Publications (1)

Publication Number Publication Date
JPS5252348A true JPS5252348A (en) 1977-04-27

Family

ID=14991965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12872875A Pending JPS5252348A (en) 1975-10-24 1975-10-24 Piezoelectric band erasing filter

Country Status (1)

Country Link
JP (1) JPS5252348A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110011635A (en) * 2017-12-07 2019-07-12 英飞凌科技股份有限公司 Acoustical coupling resonator trap and bandpass filter

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110011635A (en) * 2017-12-07 2019-07-12 英飞凌科技股份有限公司 Acoustical coupling resonator trap and bandpass filter
EP3506500A3 (en) * 2017-12-07 2019-10-30 Infineon Technologies AG Notch filters based on coupled acoustic resonators
US10840887B2 (en) 2017-12-07 2020-11-17 Infineon Technologies Ag System and method for a radio frequency filter
US10931262B2 (en) 2017-12-07 2021-02-23 Infineon Technologies Ag Tunable resonator element, filter circuit and method
US10965274B2 (en) 2017-12-07 2021-03-30 Infineon Technologies Ag System and method for a radio frequency filter
US10979021B2 (en) 2017-12-07 2021-04-13 Infineon Technologies Ag System and method for a radio frequency filter
US11005451B2 (en) 2017-12-07 2021-05-11 Infineon Technologies Ag Acoustically coupled resonator notch and bandpass filters
US11005449B2 (en) 2017-12-07 2021-05-11 Infineon Technologies Ag Acoustically coupled resonator notch and bandpass filters
US11012051B2 (en) 2017-12-07 2021-05-18 Infineon Technologies Ag System and method for a radio frequency filter
US11018652B2 (en) 2017-12-07 2021-05-25 Infineon Technologies Ag Tunable resonator element, filter circuit and method
US11057018B2 (en) 2017-12-07 2021-07-06 Infineon Technologies Ag Acoustically coupled resonator notch and bandpass filters
US11245381B2 (en) 2017-12-07 2022-02-08 Infineon Technologies Ag System and method for a radio frequency filter

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