JPS53110350A - Filter unit - Google Patents

Filter unit

Info

Publication number
JPS53110350A
JPS53110350A JP2559977A JP2559977A JPS53110350A JP S53110350 A JPS53110350 A JP S53110350A JP 2559977 A JP2559977 A JP 2559977A JP 2559977 A JP2559977 A JP 2559977A JP S53110350 A JPS53110350 A JP S53110350A
Authority
JP
Japan
Prior art keywords
filter unit
enhance
manufacture
double
ensure
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
JP2559977A
Other languages
Japanese (ja)
Inventor
Yasuo Nakajima
Kiyokazu Hagiwara
Takashi Nagata
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 JP2559977A priority Critical patent/JPS53110350A/en
Publication of JPS53110350A publication Critical patent/JPS53110350A/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
    • H03H9/56—Monolithic crystal filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0095—Balance-unbalance or balance-balance networks using bulk acoustic wave devices
    • 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

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:To enhance the attenuation properties of the multiple mode filter as well as to ensure an easy design and manufacture, by using a piezoelectric plate featuring the thickness vibration and a double-terminal circuit containing the piezoelectric resonator.
JP2559977A 1977-03-08 1977-03-08 Filter unit Pending JPS53110350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2559977A JPS53110350A (en) 1977-03-08 1977-03-08 Filter unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2559977A JPS53110350A (en) 1977-03-08 1977-03-08 Filter unit

Publications (1)

Publication Number Publication Date
JPS53110350A true JPS53110350A (en) 1978-09-27

Family

ID=12170362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2559977A Pending JPS53110350A (en) 1977-03-08 1977-03-08 Filter unit

Country Status (1)

Country Link
JP (1) JPS53110350A (en)

Similar Documents

Publication Publication Date Title
JPS5414137A (en) Elastic surface wave unit
JPS5420638A (en) Polarized filter
JPS53110350A (en) Filter unit
JPS53112651A (en) Variable frequency demultiplier
JPS53110349A (en) Elastic surface wave filter device
JPS53132246A (en) Elastic surface wave filter
JPS5222852A (en) Multiple mode piezo ceramic filter
JPS5441690A (en) Elastic surface wave unit
JPS52141543A (en) Manufacture of surface elastic wave unit
JPS5390844A (en) Ladder-type piezoelectric filter
JPS53126843A (en) Ladder-type ceramic filter
JPS5248489A (en) Piezo-electric porcelain resonator
JPS5413320A (en) Basslef type speaker device
JPS51123627A (en) A speaker diaphram
JPS53112644A (en) Piezoelectric ceramic filter
JPS5272136A (en) Elastic surface wave filter
JPS52148782A (en) Amplitude attenuation device
JPS52137290A (en) Thickness slide resonator
JPS53107216A (en) Grounding system for signal transmission system
JPS5250697A (en) Thickness sliding crystal vibrator
JPS52126109A (en) Line signal watch circuit
JPS5248488A (en) Piezo-electric porcelain resonator
JPS53109462A (en) Arbitrary frequency generator
JPS5354446A (en) Trap circuit
JPS52135646A (en) Elastic surface wave filter