EP 2042402 A1 20090401 - Radio communication device in a guided transport means
Title (en)
Radio communication device in a guided transport means
Title (de)
Funkkommunikationsgerät in einem gesteuerten Verkehrsmittel
Title (fr)
Dispositif de communication radioélectrique dans un moyen de transport guidé
Publication
Application
Priority
FR 0706722 A 20070925
Abstract (en)
The device has a continuous radiating structure (10) formed by waveguides of a rectangular section presenting three sections (a, b, c) pierced with a series of slots (12, 14, 16) respectively. A microwave signal is injected into the slots. An energy transition unit transmits energy between the structure and a Yagi type directive antenna, where the sections are adjacent and consecutive to each other. Large dimension of the slots (14) progressively extends on length of the section (b).
Abstract (fr)
L'invention concerne un dispositif de communication radioélectrique (10, 20) comportant une structure continue rayonnante (a) percé d'une première série de fentes (12), à l'intérieur de laquelle un signal hyperfréquence est injecté, une antenne directive (c) et un moyen de transition (b) d'énergie entre la structure continue rayonnante (a) et l'antenne directive (c) caractérisée en ce que ledit moyen de transition (b) et ladite antenne directive (c) sont constitués respectivement d'un deuxième et d'un troisième tronçons de structures rayonnantes.
IPC 8 full level
B61L 3/22 (2006.01); H01Q 1/32 (2006.01); H01Q 13/20 (2006.01); H01Q 19/30 (2006.01)
CPC (source: EP)
B61L 3/125 (2013.01); H01Q 1/3225 (2013.01); H01Q 13/20 (2013.01); H01Q 19/30 (2013.01)
Citation (applicant)
- FR 2608119 A1 19880617 - ALSTHOM [FR]
- H. A. BETHE: "Theory of diffraction by small holes", PHYS. REV., vol. 66, 1944, pages 1263
Citation (search report)
- [X] US 2981949 A 19610425 - ELLIOTT ROBERT S
- [X] FR 1531311 A 19680705 - TOKYO SHIBAURA ELECTRIC CO
- [X] EP 0274055 A2 19880713 - ALSTHOM [FR]
- [X] US 4518967 A 19850521 - WESTERMAN CHARLES W [US]
- [X] US 4313120 A 19820126 - WESTERMAN CHARLES W
- [X] EP 0529581 A1 19930303 - ALSTHOM GEC [FR]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2042402 A1 20090401; CN 101397019 A 20090401; CN 101397019 B 20130109; FR 2921505 A1 20090327; FR 2921505 B1 20140131; SG 151222 A1 20090430
DOCDB simple family (application)
EP 08105428 A 20080925; CN 200810176945 A 20080924; FR 0706722 A 20070925; SG 2008070328 A 20080922