GB2566182A - Multi-band filter apparatus and method of use thereof - Google Patents

Multi-band filter apparatus and method of use thereof

Info

Publication number
GB2566182A
GB2566182A GB1819089.2A GB201819089A GB2566182A GB 2566182 A GB2566182 A GB 2566182A GB 201819089 A GB201819089 A GB 201819089A GB 2566182 A GB2566182 A GB 2566182A
Authority
GB
United Kingdom
Prior art keywords
band filter
filter apparatus
resonating
resonating means
frequencies
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.)
Withdrawn
Application number
GB1819089.2A
Other versions
GB201819089D0 (en
Inventor
Musonda Evaristo
Parry Richard
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.)
Radio Design Ltd
Original Assignee
Radio Design Ltd
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 Radio Design Ltd filed Critical Radio Design Ltd
Publication of GB201819089D0 publication Critical patent/GB201819089D0/en
Publication of GB2566182A publication Critical patent/GB2566182A/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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

Landscapes

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

Abstract

Multi-band filter apparatus is provided including a housing in which at least one resonating means is provided. The at least one resonating means is capable of resonating at one or more frequencies. Each of said at least one resonating means is arranged such that one or more radio frequency signals in at least two different and distinct passbands are able to pass therethrough in use.
GB1819089.2A 2016-05-23 2017-05-19 Multi-band filter apparatus and method of use thereof Withdrawn GB2566182A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1608991.4A GB201608991D0 (en) 2016-05-23 2016-05-23 Mult-band filter apparatus and method of use thereof
PCT/GB2017/051403 WO2017203216A1 (en) 2016-05-23 2017-05-19 Multi-band filter apparatus and method of use thereof

Publications (2)

Publication Number Publication Date
GB201819089D0 GB201819089D0 (en) 2019-01-09
GB2566182A true GB2566182A (en) 2019-03-06

Family

ID=56369770

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1608991.4A Ceased GB201608991D0 (en) 2016-05-23 2016-05-23 Mult-band filter apparatus and method of use thereof
GB1819089.2A Withdrawn GB2566182A (en) 2016-05-23 2017-05-19 Multi-band filter apparatus and method of use thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1608991.4A Ceased GB201608991D0 (en) 2016-05-23 2016-05-23 Mult-band filter apparatus and method of use thereof

Country Status (2)

Country Link
GB (2) GB201608991D0 (en)
WO (1) WO2017203216A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113675561A (en) * 2020-05-14 2021-11-19 大富科技(安徽)股份有限公司 Filter and communication equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5349316A (en) * 1993-04-08 1994-09-20 Itt Corporation Dual bandpass microwave filter
US5410284A (en) * 1992-12-09 1995-04-25 Allen Telecom Group, Inc. Folded multiple bandpass filter with various couplings
GB2481291A (en) * 2010-06-14 2011-12-21 Radio Design Ltd A combiner filter to allow multiple BTSs operating in a common frequency band to share a common antenna

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5410284A (en) * 1992-12-09 1995-04-25 Allen Telecom Group, Inc. Folded multiple bandpass filter with various couplings
US5349316A (en) * 1993-04-08 1994-09-20 Itt Corporation Dual bandpass microwave filter
GB2481291A (en) * 2010-06-14 2011-12-21 Radio Design Ltd A combiner filter to allow multiple BTSs operating in a common frequency band to share a common antenna

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
[XAY] - CHEN FU-CHANG ET AL, "Dual-Band Coaxial Cavity Bandpass Filter With Helical Feeding Structure and Mixed Coupling", IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 25, no. 1, doi:10.1109/LMWC.2014.2369965, ISSN 1531-1309, (20150101), pages 31 - 33, *
[XAY] - HONG-MING LEE ET AL, "Dual-band coupling and feed structure for microstrip filter design", MICROWAVE SYMPOSIUM DIGEST, 2004 IEEE MTT-S INTERNATIONAL FORT WORTH, TX, USA JUNE 6-11, 2004, PISCATAWAY, NJ, USA,IEEE, (20040606), vol. 3, doi:10.1109/MWSYM.2004.1338997, ISBN 978-0-7803-8331-9, page *
KENNETH S. K. YEO ; MICHAEL J. LANCASTER: "8 pole high temperature superconductor microstrip dual band bandpass filter design", MICROWAVE SYMPOSIUM DIGEST (MTT), 2011 IEEE MTT-S INTERNATIONAL, IEEE, 5 June 2011 (2011-06-05), pages 1 - 4, XP032006592, ISBN: 978-1-61284-754-2, DOI: 10.1109/MWSYM.2011.5972643 *
LAIYUN JI; JIE MA; JUN SUN; LANG WANG; YANQI LI; BIN LIU: "Design and performance of dual-band high temperature superconducting filter", SCIENCE CHINA INFORMATION SCIENCES, SP SCIENCE CHINA PRESS, HEIDELBERG, vol. 55, no. 4, 30 May 2011 (2011-05-30), Heidelberg, pages 956 - 961, XP035028707, ISSN: 1869-1919, DOI: 10.1007/s11432-010-4173-8 *
SARAWUTH CHAIMOOL ; PRAYOOT AKKARAEKTHALINL: "Resonator-Embedded Four-Pole Cross-Coupled Dual-Band Microstrip Bandpass Filters", COMMUNICATIONS AND INFORMATION TECHNOLOGIES, 2006. ISCIT;06. INT ERNATIONAL SYMPOSIUM ON, IEEE, PI, 1 October 2006 (2006-10-01), Pi, pages 1076 - 1079, XP031068326, ISBN: 978-0-7803-9740-8 *

Also Published As

Publication number Publication date
WO2017203216A1 (en) 2017-11-30
GB201819089D0 (en) 2019-01-09
GB201608991D0 (en) 2016-07-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)