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WO1999030383A3 - Resonator structure - Google Patents

Resonator structure Download PDF

Info

Publication number
WO1999030383A3
WO1999030383A3 PCT/FI1998/000967 FI9800967W WO9930383A3 WO 1999030383 A3 WO1999030383 A3 WO 1999030383A3 FI 9800967 W FI9800967 W FI 9800967W WO 9930383 A3 WO9930383 A3 WO 9930383A3
Authority
WO
WIPO (PCT)
Prior art keywords
resonator
coupling
tuning means
tuning
frequency
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.)
Ceased
Application number
PCT/FI1998/000967
Other languages
French (fr)
Other versions
WO1999030383A2 (en
Inventor
Tapani Vistbacka
Erkki Niiranen
Jouni Ala-Kojola
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.)
Pulse Finland Oy
Original Assignee
LK Products Oy
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
Priority claimed from FI974490A external-priority patent/FI104298B/en
Priority claimed from FI981348A external-priority patent/FI981348A7/en
Application filed by LK Products Oy filed Critical LK Products Oy
Priority to AU15646/99A priority Critical patent/AU1564699A/en
Publication of WO1999030383A2 publication Critical patent/WO1999030383A2/en
Publication of WO1999030383A3 publication Critical patent/WO1999030383A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

The object of the invention is a coaxial resonator structure which enables the realisation of a high frequency filter, which has a small height and is realised with coaxial resonators. The frequency tuning means and the coupling tuning means of the resonator are realised with the aid of projections. The frequency tuning means adjusts the coupling of the resonator's open end to the outer wall or to the partition of the resonator structure, and the coupling tuning means adjusts the coupling of the resonator's open end to another resonator of the resonator structure or to the input or output of the resonator structure. The tuning means are preferably sheet-like projections. At the same time the tuning means act as capacitive loads, whereby it is possible to shorten the resonator's physical length compared to an unloaded resonator. Most preferably the frequency tuning means and the coupling tuning means are realised as projections of a single sheet-like component, whereby a resonator according to the invention is formed by two parts: a resonator and a capacitive loading part fastened to it, whereby the loading part at the same time acts as a frequency tuning means and a coupling tuning means. In a resonator structure of this type the tuning of the resonance frequency and the tuning of the coupling between the resonator circuits are combined by using a single mechanical part so that the tuning operations are mutually almost independent, both electrically and mechanically, whereby the tuning of the coupling and of the frequency substantially do not affect each other.
PCT/FI1998/000967 1997-12-11 1998-12-11 Resonator structure Ceased WO1999030383A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15646/99A AU1564699A (en) 1997-12-11 1998-12-11 Resonator structure

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI974490 1997-12-11
FI974490A FI104298B (en) 1997-12-11 1997-12-11 Resontorstruktur
FI981348A FI981348A7 (en) 1998-06-11 1998-06-11 High-frequency resonator and filter structure
FI981348 1998-06-11

Publications (2)

Publication Number Publication Date
WO1999030383A2 WO1999030383A2 (en) 1999-06-17
WO1999030383A3 true WO1999030383A3 (en) 1999-07-22

Family

ID=26160484

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1998/000967 Ceased WO1999030383A2 (en) 1997-12-11 1998-12-11 Resonator structure

Country Status (2)

Country Link
AU (1) AU1564699A (en)
WO (1) WO1999030383A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353144A (en) 1999-08-11 2001-02-14 Nokia Telecommunications Oy Combline filter
FI119207B (en) 2003-03-18 2008-08-29 Filtronic Comtek Oy Koaxialresonatorfilter
FI121515B (en) 2004-06-08 2010-12-15 Filtronic Comtek Oy Adjustable resonator filter
EP1715544B1 (en) * 2005-04-20 2008-08-13 Matsushita Electric Industrial Co., Ltd. Block filter
CN100364169C (en) * 2005-11-28 2008-01-23 浙江三维通信股份有限公司 Cavity Filter with Tunable Capacitive Coupling Structure
DE102006061141B4 (en) * 2006-12-22 2014-12-11 Kathrein-Werke Kg High frequency filter with blocking circuit coupling
US7777593B2 (en) 2006-12-27 2010-08-17 Kathrein-Werke Kg High frequency filter with blocking circuit coupling
EP2337149A1 (en) 2009-12-16 2011-06-22 Alcatel Lucent Cavity resonator
US9768484B2 (en) 2013-06-25 2017-09-19 Intel Corporation Resonator structure for a cavity filter arrangement
EP3035435A1 (en) * 2014-12-16 2016-06-22 Alcatel Lucent A resonator, a radio frequency filter and a method of filtering
GB201904808D0 (en) * 2019-04-05 2019-05-22 Radio Design Ltd Filter apparatus and method of use thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH532864A (en) * 1971-07-05 1973-01-15 Hirschmann Electric Arrangement with coaxial cup circles, the mutual coupling of which is adjustable
US4292610A (en) * 1979-01-26 1981-09-29 Matsushita Electric Industrial Co., Ltd. Temperature compensated coaxial resonator having inner, outer and intermediate conductors
WO1999017394A1 (en) * 1997-09-30 1999-04-08 Allgon Ab Multi surface coupled coaxial resonator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH532864A (en) * 1971-07-05 1973-01-15 Hirschmann Electric Arrangement with coaxial cup circles, the mutual coupling of which is adjustable
US4292610A (en) * 1979-01-26 1981-09-29 Matsushita Electric Industrial Co., Ltd. Temperature compensated coaxial resonator having inner, outer and intermediate conductors
WO1999017394A1 (en) * 1997-09-30 1999-04-08 Allgon Ab Multi surface coupled coaxial resonator

Also Published As

Publication number Publication date
WO1999030383A2 (en) 1999-06-17
AU1564699A (en) 1999-06-28

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