EP2191533A1 - Filtre passe-bande accordable - Google Patents

Filtre passe-bande accordable

Info

Publication number
EP2191533A1
EP2191533A1 EP08806241A EP08806241A EP2191533A1 EP 2191533 A1 EP2191533 A1 EP 2191533A1 EP 08806241 A EP08806241 A EP 08806241A EP 08806241 A EP08806241 A EP 08806241A EP 2191533 A1 EP2191533 A1 EP 2191533A1
Authority
EP
European Patent Office
Prior art keywords
resonators
bandpass filter
coupled
resonator
filter
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Withdrawn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
EP08806241A
Other languages
German (de)
English (en)
Inventor
John David Rhodes
Christopher Ian Mobbs
David Ibbetson
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.)
Filtronic Wireless Ltd
Original Assignee
Isotek Electronics 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
Priority claimed from US11/858,024 external-priority patent/US7915977B2/en
Priority claimed from GB0718275A external-priority patent/GB2452934B/en
Application filed by Isotek Electronics Ltd filed Critical Isotek Electronics Ltd
Publication of EP2191533A1 publication Critical patent/EP2191533A1/fr
Withdrawn legal-status Critical Current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

Abstract

L'invention porte sur un filtre passe-bande accordable qui renferme une pluralité de résonateurs couplés. Le fitre précité comprend : une structure commune comprenant au moins un couplage commun (44) ou un résonateur commun (7); une boucle supérieure (8) comprenant un premier et un second résonateur terminal couplés entre eux par un trajet de signal, la boucle comprenant en outre au moins un autre trajet de signal s'étendant entre les résonateurs terminaux, le trajet de signal supplémentaire comprenant au moins un résonateur supplémentaire, les résonateurs terminaux étant couplés à la structure commune; une boucle inférieure (18) comprenant un premier et un second résonateur terminal couplés entre eux par un trajet de signal, la boucle comprenant en outre au moins un trajet de signal supplémentaire s'étendant entre les résonateurs terminaux, le trajet de signal supplémentaire comprenant au moins un résonateur supplémentaire, les résonateurs terminaux étant couplés à la structure commune; les résonateurs étant couplés entre eux de manière que le filtre passe-bande puisse être divisé en un sous-filtre passe-bas et en un sous-filtre passe-haut, l'un des sous-filtres étant conçu pour recevoir la sortie de l'autre.
EP08806241A 2007-09-19 2008-09-11 Filtre passe-bande accordable Withdrawn EP2191533A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/858,024 US7915977B2 (en) 2007-09-19 2007-09-19 Tuneable bandpass filter
GB0718275A GB2452934B (en) 2007-09-19 2007-09-19 A tuneable bandpass filter
PCT/GB2008/003082 WO2009037425A1 (fr) 2007-09-19 2008-09-11 Filtre passe-bande accordable

Publications (1)

Publication Number Publication Date
EP2191533A1 true EP2191533A1 (fr) 2010-06-02

Family

ID=40304614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08806241A Withdrawn EP2191533A1 (fr) 2007-09-19 2008-09-11 Filtre passe-bande accordable

Country Status (3)

Country Link
EP (1) EP2191533A1 (fr)
CN (1) CN101803108A (fr)
WO (1) WO2009037425A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110364790A (zh) * 2019-07-05 2019-10-22 京信通信技术(广州)有限公司 滤波器及其多零点实现模块
CN110783671A (zh) * 2019-11-13 2020-02-11 电子科技大学 一种可重构带通滤波器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5390741A (en) * 1977-01-21 1978-08-09 Nec Corp Band pass filter
US6046658A (en) * 1998-09-15 2000-04-04 Hughes Electronics Corporation Microwave filter having cascaded subfilters with preset electrical responses
US6337610B1 (en) * 1999-11-22 2002-01-08 Comsat Corporation Asymmetric response bandpass filter having resonators with minimum couplings
JP3610861B2 (ja) * 2000-01-31 2005-01-19 三菱電機株式会社 低域通過フィルタ
GB2361057B (en) * 2000-04-06 2002-06-26 Marconi Comm Ltd Optical signal monitor
WO2002099969A2 (fr) * 2001-06-05 2002-12-12 Vitesse Semiconductor Corporation Procede de selection d'harmoniques et commande de niveau dans un oscillateur a resistance negative a circuit integre cmos pour realiser une gigue reduite
EP1411582B1 (fr) * 2002-07-29 2006-03-08 Alcatel Filtre microondes passe-bande à réponse générale canonique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009037425A1 *

Also Published As

Publication number Publication date
WO2009037425A1 (fr) 2009-03-26
CN101803108A (zh) 2010-08-11

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