EP 1241729 A1 20020918 - Dielectric filter and method of manufacturing the same
Title (en)
Dielectric filter and method of manufacturing the same
Title (de)
Dielektrisches Filter und Verfahren zu dessen Herstellung
Title (fr)
Filtre diélectrique et sa méthode de fabrication
Publication
Application
Priority
EP 01106723 A 20010316
Abstract (en)
A plurality of resonators 50 are formed in a dielectric porcelain block 42, wherein each of the resonators 50 is formed by coating an interior surface of a through section with an interior conductor 54, thus constituting a dielectric filter 41. On a side surface 44 of the dielectricblock 42 perpendicular to an open end face 43 having the through sections formed therein, there are formed protrusions 45 having a height L lower than that of the through sections. Terminal electrodes 60a and 60b are defined with the protrusions 45 taken as a boundary between the terminal electrodes 60a and 60b, and isolated from an exterior conductor 62. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/205 (2006.01); H01P 11/00 (2006.01)
CPC (source: EP)
H01P 1/2056 (2013.01); H01P 11/007 (2013.01)
Citation (search report)
- [XY] WO 9530250 A1 19951109 - MOTOROLA INC [US]
- [Y] US 5537082 A 19960716 - TADA HITOSHI [JP], et al
- [A] US 4220810 A 19800902 - ARAI MINORU [JP], et al
- [A] EP 0797266 A2 19970924 - NGK SPARK PLUG CO [JP]
- [A] PATENT ABSTRACTS OF JAPAN vol. 011, no. 227 (E - 526) 23 July 1987 (1987-07-23)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 01106723 A 20010316