AU587829B2

AU587829B2 – Improved high-Q RF filter with printed circuit board arrangement
– Google Patents

AU587829B2 – Improved high-Q RF filter with printed circuit board arrangement
– Google Patents
Improved high-Q RF filter with printed circuit board arrangement

Info

Publication number
AU587829B2

AU587829B2
AU57478/86A
AU5747886A
AU587829B2
AU 587829 B2
AU587829 B2
AU 587829B2
AU 57478/86 A
AU57478/86 A
AU 57478/86A
AU 5747886 A
AU5747886 A
AU 5747886A
AU 587829 B2
AU587829 B2
AU 587829B2
Authority
AU
Australia
Prior art keywords
filter
circuit board
printed circuit
improved high
board arrangement
Prior art date
1985-06-07
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.)

Ceased

Application number
AU57478/86A
Other versions

AU5747886A
(en

Inventor
Colin John May
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.)

Motorola Solutions Inc

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.)
1985-06-07
Filing date
1986-05-15
Publication date
1989-08-31

1986-05-15
Application filed by Motorola Inc
filed
Critical
Motorola Inc

1986-12-11
Publication of AU5747886A
publication
Critical
patent/AU5747886A/en

1989-08-31
Application granted
granted
Critical

1989-08-31
Publication of AU587829B2
publication
Critical
patent/AU587829B2/en

2006-05-15
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE

H01P7/00—Resonators of the waveguide type

H01P7/005—Helical resonators; Spiral resonators

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE

H01P1/00—Auxiliary devices

H01P1/20—Frequency-selective devices, e.g. filters

H01P1/201—Filters for transverse electromagnetic waves

H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities

H01P1/2053—Comb or interdigital filters; Cascaded coaxial cavities the coaxial cavity resonators being disposed parall to each other

H—ELECTRICITY

H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

H05K1/00—Printed circuits

H05K1/02—Details

H05K1/0213—Electrical arrangements not otherwise provided for

H05K1/0237—High frequency adaptations

H—ELECTRICITY

H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

H05K1/00—Printed circuits

H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor

AU57478/86A
1985-06-07
1986-05-15
Improved high-Q RF filter with printed circuit board arrangement

Ceased

AU587829B2
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

US742502

1985-06-07

US06/742,502

US4682131A
(en)

1985-06-07
1985-06-07
High-Q RF filter with printed circuit board mounting temperature compensated and impedance matched helical resonators

Publications (2)

Publication Number
Publication Date

AU5747886A

AU5747886A
(en)

1986-12-11

AU587829B2
true

AU587829B2
(en)

1989-08-31

Family
ID=24985085
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU57478/86A
Ceased

AU587829B2
(en)

1985-06-07
1986-05-15
Improved high-Q RF filter with printed circuit board arrangement

Country Status (2)

Country
Link

US
(1)

US4682131A
(en)

AU
(1)

AU587829B2
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AU626688B2
(en)

*

1989-06-19
1992-08-06
Philips Electronics Australia Limited
A filter

Families Citing this family (21)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4682131A
(en)

*

1985-06-07
1987-07-21
Motorola Inc.
High-Q RF filter with printed circuit board mounting temperature compensated and impedance matched helical resonators

FI78198C
(en)

*

1987-11-20
1989-06-12
Lk Products Oy

Överföringsledningsresonator

FI80542C
(en)

*

1988-10-27
1990-06-11
Lk Products Oy

resonator

JPH0812961B2
(en)

*

1989-05-02
1996-02-07
株式会社村田製作所

Parallel multi-stage bandpass filter

US5032807A
(en)

*

1989-07-10
1991-07-16
General Instrument Corporation
Notch filter using helical transmission line and coaxial capacitor

US4970479A
(en)

*

1989-11-27
1990-11-13
Rockwell International Corporation
Multicoupler including frequency shift filters

FI84674C
(en)

*

1990-02-07
1991-12-27
Lk Products Oy

Helix resonator

FI87405C
(en)

*

1990-02-07
1992-12-28
Lk Products Oy

HOEGFREKVENSFILTER

GB2253532A
(en)

*

1991-03-04
1992-09-09
Motorola Israel Ltd
A resonator

FI91116C
(en)

*

1992-04-21
1994-05-10
Lk Products Oy

Helix resonator

FI95851C
(en)

*

1993-09-10
1996-03-25
Lk Products Oy

Connection for electrical frequency control of a transmission line resonator and an adjustable filter

FI110148B
(en)

*

1993-09-10
2002-11-29
Filtronic Lk Oy

Multi-resonator radio frequency filter

FI94914C
(en)

*

1993-12-23
1995-11-10
Lk Products Oy

Combed helix filter

FI95327C
(en)

*

1994-01-26
1996-01-10
Lk Products Oy

Adjustable filter

US5604472A
(en)

*

1995-12-01
1997-02-18
Illinois Superconductor Corporation
Resonator mounting mechanism

FI106583B
(en)

1996-10-25
2001-02-28
Adc Solitra Oy

resonator

US5889448A
(en)

*

1997-06-05
1999-03-30
Illinois Superconductor Corporation
Resonator mounting mechanism

US6031436A
(en)

*

1998-04-02
2000-02-29
Space Systems/Loral, Inc.
Single and dual mode helix loaded cavity filters

US6084487A
(en)

*

1998-11-27
2000-07-04
Hoffman; Mark Allan
Helical filter with a removable tap housing

US6816037B2
(en)

*

1998-11-27
2004-11-09
Mark Allan Hoffman
Helical filters and methods for specifying assembly thereof

US6064285A
(en)

*

1998-12-11
2000-05-16
Wavecom Electronics Inc
Printed circuit board helical resonator and filter apparatus

Citations (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4342969A
(en)

*

1980-10-06
1982-08-03

General Electric Company

Means for matching impedances between a helical resonator and a circuit connected thereto

US4459571A
(en)

*

1982-12-20
1984-07-10

Motorola, Inc.

Varactor-tuned helical resonator filter

US4682131A
(en)

*

1985-06-07
1987-07-21

Motorola Inc.

High-Q RF filter with printed circuit board mounting temperature compensated and impedance matched helical resonators

Family Cites Families (11)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3173111A
(en)

*

1961-05-24
1965-03-09
Heinz E Kallmann
Delay line

US3247475A
(en)

*

1963-09-06
1966-04-19
Motorola Inc
Helical resonator with variable capacitor having fixed plate which also functions as inductance

US3840828A
(en)

*

1973-11-08
1974-10-08
Bell Telephone Labor Inc
Temperature-stable dielectric resonator filters for stripline

US3936776A
(en)

*

1975-03-10
1976-02-03
Bell Telephone Laboratories, Incorporated
Interspersed double winding helical resonator with connections to cavity

US3970972A
(en)

*

1975-05-12
1976-07-20
Northern Electric Company Limited
Shock resistant, temperature compensated helical resonator

GB1602770A
(en)

*

1977-06-03
1981-11-18
Matsushita Electric Ind Co Ltd
Band pass filter

US4205286A
(en)

*

1978-02-27
1980-05-27
Motorola, Inc.
Temperature stabilized helical resonator

DE3275618D1
(en)

*

1981-04-08
1987-04-09
Matsushita Electric Ind Co Ltd
Band-pass filter having multilayered coil structures

US4361821A
(en)

*

1981-04-13
1982-11-30
General Electric Company
Capacitor coupling arrangement for UHF resonant structure

JPS5824201A
(en)

*

1981-08-06
1983-02-14
Fujitsu Ltd
Helical filter

US4477785A
(en)

*

1981-12-02
1984-10-16
Communications Satellite Corporation
Generalized dielectric resonator filter

1985

1985-06-07
US
US06/742,502
patent/US4682131A/en
not_active
Expired – Fee Related

1986

1986-05-15
AU
AU57478/86A
patent/AU587829B2/en
not_active
Ceased

Patent Citations (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4342969A
(en)

*

1980-10-06
1982-08-03
General Electric Company
Means for matching impedances between a helical resonator and a circuit connected thereto

US4459571A
(en)

*

1982-12-20
1984-07-10
Motorola, Inc.
Varactor-tuned helical resonator filter

US4682131A
(en)

*

1985-06-07
1987-07-21
Motorola Inc.
High-Q RF filter with printed circuit board mounting temperature compensated and impedance matched helical resonators

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AU626688B2
(en)

*

1989-06-19
1992-08-06
Philips Electronics Australia Limited
A filter

Also Published As

Publication number
Publication date

AU5747886A
(en)

1986-12-11

US4682131A
(en)

1987-07-21

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