EP 2659544 A1 20131106 - FILTER THAT IS VARIABLE BY MEANS OF A CAPACITOR THAT IS SWITCHED USING MEMS COMPONENTS
Title (en)
FILTER THAT IS VARIABLE BY MEANS OF A CAPACITOR THAT IS SWITCHED USING MEMS COMPONENTS
Title (de)
MITTELS EINES MEMS-GESCHALTETEN KONDENSATORS VERÄNDERLICHES FILTER
Title (fr)
FILTRE VARIABLE PAR CONDENSATEUR COMMUTE AU MOYEN DE COMPOSANTS MEMS
Publication
Application
Priority
- FR 1005182 A 20101230
- EP 2011073813 W 20111222
Abstract (en)
[origin: WO2012089619A1] The invention relates to a tractable filter comprising at least two resonating circuits (14a, 14b) arranged between two matching networks (4, 5), characterized in that: one resonator is connected, by a first of the ends thereof (14a1, 14b1), to the ground M of the filter by plated through-holes (16), and by a second end (14a2, 14b2) thereof to a MEMS network (12); the distance d between the two resonators forms an inductive inter-resonator coupling circuit (10); an inter-resonator coupling capacitor (11) is formed by two etched lines (11a, 11b) connected to the first and second resonators; the MEMS networks are distributed around the ends of the resonators; the MEMS networks are connected between the first and second resonators and the ground M by means of plated through-holes; and the filter includes a plurality of independent control voltages Vi (17) designed to operate the MEMS.
IPC 8 full level
H01P 1/203 (2006.01)
CPC (source: EP US)
H01P 1/203 (2013.01 - US); H01P 1/20336 (2013.01 - EP US); H03H 7/00 (2013.01 - EP US); H03H 7/0123 (2013.01 - EP US); H03H 7/0138 (2013.01 - US); H03H 7/0153 (2013.01 - EP US); H03H 7/1766 (2013.01 - EP US); H03H 7/1775 (2013.01 - EP US); H03H 7/38 (2013.01 - US); H03H 2007/008 (2013.01 - EP US); H03H 2210/025 (2013.01 - EP US)
Citation (search report)
See references of WO 2012089619A1
Citation (examination)
- US 2005017824 A1 20050127 - HIRABAYASHI TAKAYUKI [JP]
- KR 20010094509 A 20011101 - FIELDCOM COMPANY LTD [KR], et al
- LI ZHU ET AL: "Adjustable Bandwidth Filter Design Based on Interdigital Capacitors", IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 18, no. 1, 1 January 2008 (2008-01-01), pages 16 - 18, XP011199157, ISSN: 1531-1309, DOI: 10.1109/LMWC.2007.911975
- CHING-WEN TANG ET AL: "A Microstrip Bandpass Filter With Ultra-Wide Stopband", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, PLENUM, USA, vol. 56, no. 6, 1 June 2008 (2008-06-01), pages 1468 - 1472, XP011215082, ISSN: 0018-9480
- MOHAMMED A EL-TANANI ET AL: "Corrugated Microstrip Coupled Lines for Constant Absolute Bandwidth Tunable Filters", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, PLENUM, USA, vol. 58, no. 4, 1 April 2010 (2010-04-01), pages 956 - 963, XP011305950, ISSN: 0018-9480
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012089619 A1 20120705; EP 2659544 A1 20131106; FR 2970129 A1 20120706; FR 2970129 B1 20130118; US 2014176263 A1 20140626; US 9300269 B2 20160329
DOCDB simple family (application)
EP 2011073813 W 20111222; EP 11811346 A 20111222; FR 1005182 A 20101230; US 201113977492 A 20111222