WO2009000862A3 - Tuneable rf filters and methods thereof - Google Patents

Tuneable rf filters and methods thereof Download PDF

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Publication number
WO2009000862A3
WO2009000862A3 PCT/EP2008/058095 EP2008058095W WO2009000862A3 WO 2009000862 A3 WO2009000862 A3 WO 2009000862A3 EP 2008058095 W EP2008058095 W EP 2008058095W WO 2009000862 A3 WO2009000862 A3 WO 2009000862A3
Authority
WO
WIPO (PCT)
Prior art keywords
tuneable
filters
methods
cavity
tuning element
Prior art date
Application number
PCT/EP2008/058095
Other languages
French (fr)
Other versions
WO2009000862A2 (en
Inventor
Thomas Noergaard
Original Assignee
Radiocomp Aps
Thomas Noergaard
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 Radiocomp Aps, Thomas Noergaard filed Critical Radiocomp Aps
Publication of WO2009000862A2 publication Critical patent/WO2009000862A2/en
Publication of WO2009000862A3 publication Critical patent/WO2009000862A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/10—Dielectric 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
    • 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
    • H01P1/207—Hollow waveguide filters
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
    • H01P1/2084—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with dielectric resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/04—Coaxial resonators

Abstract

Disclosed is a radio frequency filter comprising a cavity member and a tuning element defining a cavity, the tuning element being adapted to tune a resonance frequency of the cavity; wherein the filter further comprises a piezoelectric motor adapted to displace the tuning element so as to electrically tune the filter.
PCT/EP2008/058095 2007-06-26 2008-06-25 Tuneable rf filters and methods thereof WO2009000862A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200700917 2007-06-26
DKPA200700917 2007-06-26

Publications (2)

Publication Number Publication Date
WO2009000862A2 WO2009000862A2 (en) 2008-12-31
WO2009000862A3 true WO2009000862A3 (en) 2009-03-26

Family

ID=39768594

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/058095 WO2009000862A2 (en) 2007-06-26 2008-06-25 Tuneable rf filters and methods thereof

Country Status (1)

Country Link
WO (1) WO2009000862A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8598969B1 (en) * 2011-04-15 2013-12-03 Rockwell Collins, Inc. PCB-based tuners for RF cavity filters
US10333496B2 (en) 2014-10-27 2019-06-25 Nokia Solutions And Networks Oy Tuning of filters
EP3324480B1 (en) * 2016-11-17 2020-06-24 Alcatel Lucent Resonator, resonator assembly and filter
US11705830B2 (en) 2019-02-22 2023-07-18 Acuvi Ab Electromechanical motor and tunable filter comprising an electromechanical motor
KR20220006734A (en) * 2020-07-09 2022-01-18 삼성전자주식회사 Antenna filter and electronic device inlcuding the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692727A (en) * 1985-06-05 1987-09-08 Murata Manufacturing Co., Ltd. Dielectric resonator device
JPS6411402A (en) * 1987-07-03 1989-01-17 Mitsubishi Electric Corp Variable frequency resonance circuit
WO2006059159A1 (en) * 2004-12-01 2006-06-08 South Bank University Enterprises Ltd. Tunable or re-configurable dielectric resonator filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692727A (en) * 1985-06-05 1987-09-08 Murata Manufacturing Co., Ltd. Dielectric resonator device
JPS6411402A (en) * 1987-07-03 1989-01-17 Mitsubishi Electric Corp Variable frequency resonance circuit
WO2006059159A1 (en) * 2004-12-01 2006-06-08 South Bank University Enterprises Ltd. Tunable or re-configurable dielectric resonator filter

Also Published As

Publication number Publication date
WO2009000862A2 (en) 2008-12-31

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