WO2016174424A3 - A tuneable microwave filter and a tuneable microwave multiplexer - Google Patents

A tuneable microwave filter and a tuneable microwave multiplexer Download PDF

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Publication number
WO2016174424A3
WO2016174424A3 PCT/GB2016/051185 GB2016051185W WO2016174424A3 WO 2016174424 A3 WO2016174424 A3 WO 2016174424A3 GB 2016051185 W GB2016051185 W GB 2016051185W WO 2016174424 A3 WO2016174424 A3 WO 2016174424A3
Authority
WO
WIPO (PCT)
Prior art keywords
tuneable
tuneable microwave
filter
resonator
short circuited
Prior art date
Application number
PCT/GB2016/051185
Other languages
French (fr)
Other versions
WO2016174424A2 (en
Inventor
David Rhodes
Original Assignee
David Rhodes
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 GBGB1507249.9A external-priority patent/GB201507249D0/en
Priority claimed from GBGB1507247.3A external-priority patent/GB201507247D0/en
Application filed by David Rhodes filed Critical David Rhodes
Publication of WO2016174424A2 publication Critical patent/WO2016174424A2/en
Publication of WO2016174424A3 publication Critical patent/WO2016174424A3/en

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
    • H01P1/207—Hollow waveguide filters
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/06—Cavity resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/10—Dielectric resonators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/46—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A tuneable microwave filter having a passband and a stopband with a substantially constant passband bandwidth across a tuneable band, the filter comprising a plurality of resonators, each resonator having an equivalent electrical circuit comprising a short circuited stub in parallel with a capacitor; the resonators being etectrically coupled together such that each resonator is electrically coupled to at least one other resonator by an electrical coupling equivalent to a short circuited stub; each short circuited stub being dimensioned such that its electrical length Θ varies between 2π/9 and 13π/36 or a portion of that range across the tuneable band.
PCT/GB2016/051185 2015-04-28 2016-04-27 A tuneable microwave filter and a tuneable microwave multiplexer WO2016174424A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB1507247.3 2015-04-28
GB1507249.9 2015-04-28
GBGB1507249.9A GB201507249D0 (en) 2015-04-28 2015-04-28 A tuneable microwave resonator and a tuneable microwave filter
GBGB1507247.3A GB201507247D0 (en) 2015-04-28 2015-04-28 A tuneable microwave filter and a tunable microwave multiplexer

Publications (2)

Publication Number Publication Date
WO2016174424A2 WO2016174424A2 (en) 2016-11-03
WO2016174424A3 true WO2016174424A3 (en) 2016-12-22

Family

ID=55953311

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/GB2016/051185 WO2016174424A2 (en) 2015-04-28 2016-04-27 A tuneable microwave filter and a tuneable microwave multiplexer
PCT/GB2016/051183 WO2016174422A2 (en) 2015-04-28 2016-04-27 A tuneable tem mode microwave resonator and a tuneable microwave filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/GB2016/051183 WO2016174422A2 (en) 2015-04-28 2016-04-27 A tuneable tem mode microwave resonator and a tuneable microwave filter

Country Status (2)

Country Link
GB (2) GB2540006A (en)
WO (2) WO2016174424A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110718431B (en) * 2019-09-27 2021-11-02 中国工程物理研究院应用电子学研究所 L-band three-cavity high-power microwave device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5691675A (en) * 1994-03-31 1997-11-25 Nihon Dengyo Kosaku Co., Ltd. Resonator with external conductor as resonance inductance element and multiple resonator filter
JP2009278347A (en) * 2008-05-14 2009-11-26 Mitsubishi Electric Corp Bandpass filter
US20130271243A1 (en) * 2010-12-23 2013-10-17 Kathrein-Werke Kg Tunable high-frequency filter
GB2505161A (en) * 2012-07-10 2014-02-26 Filtronic Wireless Ltd A cavity resonator comprising a ceramic resonator body with aperture and a tuning arm comprising a plunger and a disk

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336542A (en) * 1965-09-03 1967-08-15 Marconi Co Canada Tunable coaxial cavity resonator
DE2538614C3 (en) * 1974-09-06 1979-08-02 Murata Manufacturing Co., Ltd., Nagaokakyo, Kyoto (Japan) Dielectric resonator
JPS55146701U (en) * 1979-04-09 1980-10-22
FR2507018A1 (en) * 1981-06-02 1982-12-03 Thomson Csf MICROWAVE RESONATOR OF THE VARIABLE TO DIELECTRIC CAPACITOR TYPE
CA1194160A (en) * 1984-05-28 1985-09-24 Wai-Cheung Tang Planar dielectric resonator dual-mode filter
FR2583597A1 (en) * 1985-06-13 1986-12-19 Alcatel Thomson Faisceaux HYPERFREQUENCY PASSPORT FILTER IN EVANESCENT MODE
GB2269704A (en) * 1992-08-15 1994-02-16 Filtronics Components Microwave filter
US5841330A (en) * 1995-03-23 1998-11-24 Bartley Machines & Manufacturing Series coupled filters where the first filter is a dielectric resonator filter with cross-coupling
US5936490A (en) * 1996-08-06 1999-08-10 K&L Microwave Inc. Bandpass filter
US6600394B1 (en) * 1999-09-24 2003-07-29 Radio Frequency Systems, Inc. Turnable, temperature stable dielectric loaded cavity resonator and filter
FI121514B (en) * 2004-05-12 2010-12-15 Filtronic Comtek Oy Notch filters
EP1596463A1 (en) * 2004-05-15 2005-11-16 Spinner GmbH Elektrotechnische Fabrik Coaxial resonator
FI124178B (en) * 2011-06-08 2014-04-15 Powerwave Finland Oy Adjustable resonator
GB2505873B (en) * 2012-08-07 2019-10-02 Filtronic Wireless Ltd A microwave TM mode resonator and an electrical filter including such a resonator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5691675A (en) * 1994-03-31 1997-11-25 Nihon Dengyo Kosaku Co., Ltd. Resonator with external conductor as resonance inductance element and multiple resonator filter
JP2009278347A (en) * 2008-05-14 2009-11-26 Mitsubishi Electric Corp Bandpass filter
US20130271243A1 (en) * 2010-12-23 2013-10-17 Kathrein-Werke Kg Tunable high-frequency filter
GB2505161A (en) * 2012-07-10 2014-02-26 Filtronic Wireless Ltd A cavity resonator comprising a ceramic resonator body with aperture and a tuning arm comprising a plunger and a disk

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GOMEZ-GARCIA ROBERTO ET AL: "Reconfigurable Multi-Band Microwave Filters", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 63, no. 4, 1 April 2015 (2015-04-01), pages 1294 - 1307, XP011577407, ISSN: 0018-9480, [retrieved on 20150402], DOI: 10.1109/TMTT.2015.2405066 *
PENG WONG ET AL: "Electronically Tunable Filters", IEEE MICROWAVE MAGAZINE, IEEESERVICE CENTER, PISCATAWAY, NJ, US, vol. 10, no. 6, 1 October 2009 (2009-10-01), pages 46 - 54, XP011276497, ISSN: 1527-3342, DOI: 10.1109/MMM.2009.933593 *

Also Published As

Publication number Publication date
GB2540007A (en) 2017-01-04
WO2016174424A2 (en) 2016-11-03
WO2016174422A3 (en) 2017-01-05
WO2016174422A2 (en) 2016-11-03
GB2540006A (en) 2017-01-04

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