EP 0850496 B1 20020403 - TRANSMISSION DEVICE WITH OMNIDIRECTIONAL ANTENNA
Title (en)
TRANSMISSION DEVICE WITH OMNIDIRECTIONAL ANTENNA
Title (de)
SENDEVORRICHTUNG MIT RUNDSTRAHLENDER ANTENNE
Title (fr)
DISPOSITIF D'EMISSION A ANTENNE OMNIDIRECTIONNELLE
Publication
Application
Priority
- FR 9701243 W 19970709
- FR 9608601 A 19960710
Abstract (en)
[origin: WO9801920A1] The invention discloses a transmission device comprising an antenna having a plurality of aerial wires (B1 to B4) uniformly distributed in helical configuration about a common cylindrical generator, and means (C, U) for supplying the said aerial wires with a radiofrequency signal. The invention is characterised in that the supply means (C, U) produce an equiphase supply of equivalent amplitude of the said aerial wires.
IPC 1-7
IPC 8 full level
H01Q 1/36 (2006.01); H01Q 11/08 (2006.01)
CPC (source: EP US)
H01Q 1/362 (2013.01 - EP US); H01Q 11/08 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
WO 9801920 A1 19980115; DE 69711574 D1 20020508; DE 69711574 T2 20021121; EP 0850496 A1 19980701; EP 0850496 B1 20020403; FR 2751137 A1 19980116; FR 2751137 B1 19981106; US 6300916 B1 20011009
DOCDB simple family (application)
FR 9701243 W 19970709; DE 69711574 T 19970709; EP 97932866 A 19970709; FR 9608601 A 19960710; US 2996298 A 19980720