EP 0305286 B1 19921230 - MEDIUM FREQUENCY ROTATING JOINT FOR ANTENNA
Title (en)
MEDIUM FREQUENCY ROTATING JOINT FOR ANTENNA
Publication
Application
Priority
FR 8712038 A 19870828
Abstract (en)
[origin: EP0305286A1] The invention relates to rotating joints which are used in radars to transmit the electrical signals over several channels between a rotating antenna and a fixed support. <??>According to the invention the pass band of the tuned and coupled circuits of each channel is substantially improved by constructing them on concentric circular rings 20, 22 on which are deposited on both faces metal earth strips 25 to 28 connected by metallised holes 24 and metal coil strips 29 to 32 connected by the segments 33 facing the rings. <??>The invention is applicable to the antennas of radars for transmitting medium-frequency signals. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/06 (2006.01); H01R 39/18 (2006.01)
CPC (source: EP US)
H01P 1/068 (2013.01 - EP US); H01R 39/18 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT NL
DOCDB simple family (publication)
EP 0305286 A1 19890301; EP 0305286 B1 19921230; CA 1303213 C 19920609; DE 3877088 D1 19930211; DE 3877088 T2 19930506; FR 2619963 A1 19890303; FR 2619963 B1 19900126; US 4908630 A 19900313
DOCDB simple family (application)
EP 88402142 A 19880823; CA 575761 A 19880826; DE 3877088 T 19880823; FR 8712038 A 19870828; US 23624288 A 19880825