H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
H01Q 11/08 (2006.01) H01P 5/18 (2006.01)
Patent
CA 2248884
A helical antenna with built-in duplexing means, including two decoupled coaxial helices that each consist of printed radiating wires (111 to 114) on a substrate and are combined with respective separate miniaturised broadband radiating wire power supply structures (12, 13, 14) printed on the corresponding substrate and provided with at least one hybrid coupler (12, 13, 14) made of semi-localised elements, in order to reduced the size thereof, is disclosed. Said helices are advantageously wound in opposite winding directions (17), and their excitation points are mutually staggered in a plane perpendicular to the axis of said helices. The corresponding manufacturing methods are also disclosed.
L'invention concerne une antenne hélicoïdale à moyens de duplexage intégrés, comprenant deux hélices coaxiales découplées, formées chacune de brins rayonnants imprimés (11¿1? à 11¿4?) sur un substrat, chacune desdites hélices étant associée à une structure (12, 13, 14) indépendante et miniaturisée d'alimentation large bande desdits brins rayonnants, lesdites structures d'alimentation étant imprimées sur ledit substrat correspondant et comprenant au moins un coupleur hybride (12, 13, 14) réalisé à partir d'éléments semi-localisés, de façon à en réduire les dimensions. Avantageusement, lesdites hélices sont enroulées selon des sens d'enroulement (17) opposés et leurs points d'excitation sont décalés l'un par rapport à l'autre, dans un plan perpendiculaire à l'axe desdites hélices. Procédés de fabrication correspondants.
Blot Jean-Pierre
Sharaiha Ala
Terret Claude
Toureilles Jean-Marc
France Telecom
Oyen Wiggs Green & Mutala
LandOfFree
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