SG56493G - Apparatus for suppression of spurious attenuation poles in crystal filters - Google Patents

Apparatus for suppression of spurious attenuation poles in crystal filters

Info

Publication number
SG56493G
SG56493G SG564/93A SG56493A SG56493G SG 56493 G SG56493 G SG 56493G SG 564/93 A SG564/93 A SG 564/93A SG 56493 A SG56493 A SG 56493A SG 56493 G SG56493 G SG 56493G
Authority
SG
Singapore
Prior art keywords
suppression
attenuation poles
crystal filters
spurious attenuation
spurious
Prior art date
Application number
SG564/93A
Other languages
English (en)
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of SG56493G publication Critical patent/SG56493G/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
SG564/93A 1983-04-27 1993-05-03 Apparatus for suppression of spurious attenuation poles in crystal filters SG56493G (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/488,874 US4533885A (en) 1983-04-27 1983-04-27 Apparatus for suppression of spurious attenuation poles in crystal filters
PCT/US1984/000565 WO1984004434A1 (en) 1983-04-27 1984-04-12 Apparatus for suppression of spurious attenuation poles in crystal filters

Publications (1)

Publication Number Publication Date
SG56493G true SG56493G (en) 1993-07-09

Family

ID=23941470

Family Applications (1)

Application Number Title Priority Date Filing Date
SG564/93A SG56493G (en) 1983-04-27 1993-05-03 Apparatus for suppression of spurious attenuation poles in crystal filters

Country Status (11)

Country Link
US (1) US4533885A (da)
EP (1) EP0156808B1 (da)
JP (1) JPS60501188A (da)
KR (1) KR920007453B1 (da)
AU (1) AU585482B2 (da)
CA (1) CA1204178A (da)
DE (1) DE3484243D1 (da)
DK (1) DK164978C (da)
FI (1) FI87862C (da)
SG (1) SG56493G (da)
WO (1) WO1984004434A1 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0224866B1 (de) * 1985-12-05 1993-02-17 Siemens Aktiengesellschaft Oberflächenwellenbauelement
US6020797A (en) * 1998-08-21 2000-02-01 Cts Corporation Electrode connection configuration and method for a multi-pole monolithic crystal filter
JP5861693B2 (ja) * 2013-12-03 2016-02-16 株式会社村田製作所 積層バンドパスフィルタ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453458A (en) * 1965-04-19 1969-07-01 Clevite Corp Resonator supporting structure
US3609601A (en) * 1970-01-12 1971-09-28 Collins Radio Co Monolithic filter having "m" derived characteristics
IT967193B (it) * 1971-09-29 1974-02-28 Licentia Gmbh Supporto per un filtro elettro meccanico
US4282454A (en) * 1979-04-27 1981-08-04 Motorola, Inc. Piezoelectric crystal mounting and connection arrangement
US4329666A (en) * 1980-08-11 1982-05-11 Motorola, Inc. Two-pole monolithic crystal filter
DE3175105D1 (en) * 1980-08-11 1986-09-18 Motorola Inc Two-pole monolithic crystal filter
GB2100950A (en) * 1981-06-23 1983-01-06 Standard Telephones Cables Ltd Crystal filter
US4430596A (en) * 1982-08-16 1984-02-07 Motorola, Inc. Temperature insensitive piezoelectric crystal mounting arrangement

Also Published As

Publication number Publication date
JPS60501188A (ja) 1985-07-25
DK164978B (da) 1992-09-21
DE3484243D1 (de) 1991-04-11
KR920007453B1 (ko) 1992-09-01
FI87862C (fi) 1993-02-25
CA1204178A (en) 1986-05-06
FI844957A0 (fi) 1984-12-14
AU585482B2 (en) 1989-06-22
EP0156808B1 (en) 1991-03-06
FI87862B (fi) 1992-11-13
DK545184A (da) 1984-11-16
DK545184D0 (da) 1984-11-16
KR850000813A (ko) 1985-03-09
EP0156808A4 (en) 1986-08-21
FI844957L (fi) 1984-12-14
AU2827584A (en) 1984-11-19
JPH0422366B2 (da) 1992-04-16
WO1984004434A1 (en) 1984-11-08
DK164978C (da) 1993-02-08
US4533885A (en) 1985-08-06
EP0156808A1 (en) 1985-10-09

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