H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
H01Q 1/38 (2006.01) H01Q 9/04 (2006.01)
Patent
CA 2203359
This invention relates to a flat printed antenna for transmission and/or reception of miclowave signals of the type that includes particularly - a plate of dielectric substrate - an earth plane formed by a first conductor layer deposited on a first face of the plate of dielectric substrate, - a radiating element (30) formed by a second conductor layer deposited on a second face of the plate of dielectric substrate, - means of feeding the antenna This antenna has a fundamental mode, in which it generates a radiation pattern having a maximum in the direction perpendicular to the plane containing the radiating element, and at least one higher mode, in which it generates a radiation pattern with low elevation, According to the invention, the radiating element has at least one slot (31 to 34) allowing the control of the resonance frequency of a chosen higher mode.
La présente invention est une antenne imprimée plate de transmission et/ou de réception de micro-ondes comportant en particulier les éléments suivants : une plaque de substrat diélectrique, un plan de sol formé par une première couche conductrice déposée sur l'une des faces de la plaque de substrat diélectrique, un élément rayonnant (30) formé par une seconde couche conductrice déposée sur l'autre face de la plaque de substrat diélectrique et un dispositif d'alimentation de l'antenne. Celle-ci a un mode fondamental dont le diagramme de rayonnement a un maximum dans la direction perpendiculaire au plan contenant l'élément rayonnant, et au moins un autre mode plus élevé dont le diagramme de rayonnement a un angle d'élévation faible. L'élément rayonnant de l'invention comporte au moins une fente (31 à 34) qui permet de contrôler la fréquence de résonnance du mode supérieur choisi.
France Telecom
Oyen Wiggs Green & Mutala Llp
LandOfFree
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