EP 0920069 A1 19990602 - Comb-line filter including distributed constant line
Title (en)
Comb-line filter including distributed constant line
Title (de)
Kammfilter mit einer Leitung mit verteilten Konstanten
Title (fr)
Filtre en forme de peigne comprenant une ligne à constantes distribuées
Publication
Application
Priority
JP 32465597 A 19971126
Abstract (en)
The invention provides a comb-line filter (10) including a distributed constant line, comprising: a plurality of resonators (3, 4) each comprising said distributed constant line having an open end and a grounding end; a first grounding electrode (2) connected to each of said grounding end of said resonators (3, 4); at least two of said resonators (3, 4) put in proximity to each other and arranged side by side; an input electrode (5) and an output electrode (6) respectively capacitance-coupled to two of said open ends of said resonators (3, 4) which are located the farthest from each other; and a second grounding electrode (11) capacitance-coupled to said input electrode (5) and said output electrode (6) threrebetween. The attenuation value in the rejection band can be improved. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/203 (2006.01); H01P 1/205 (2006.01)
CPC (source: EP KR)
H01P 1/203 (2013.01 - KR); H01P 1/20336 (2013.01 - EP KR); H01P 7/08 (2013.01 - KR); H01P 7/082 (2013.01 - KR)
Citation (search report)
- [X] DE 4140299 A1 19930708 - AEG MOBILE COMMUNICATION [DE]
- [X] EP 0641035 A2 19950301 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [A] US 3451015 A 19690617 - HEATH PAUL D
- [A] WEN-TENG LO ET AL: "K-BAND QUASI-PLANAR TAPPED COMBLINE FILTER AND DIPLEXER", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 41, no. 2, 1 February 1993 (1993-02-01), pages 215 - 223, XP000361234
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0920069 A1 19990602; JP H11163602 A 19990618; KR 100319787 B1 20020308; KR 19990045595 A 19990625
DOCDB simple family (application)
EP 98122249 A 19981123; JP 32465597 A 19971126; KR 19980050901 A 19981126