Slotted cylinder antenna

H - Electricity – 01 – Q

Patent

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Details

H01Q 13/10 (2006.01)

Patent

CA 2531866

An antenna (100) for RF communications. The antenna includes a radiating member (102) which is substantially tubular so as to define a cavity (104) therein. The radiating member (102) is made of a conductive material having a nonconductive slot (106) extending from a first portion (108) of the radiating member (102) to a second portion (110). An impedance matching device (120) is electrically connected to the radiating member (102) via a conductor (134) to match an impedance of the radiating member (102) with an impedance of a signal source or an impedance of a load. The impedance matching device (120), the conductor (134), and at least a portion of the radiating member radiating element (102) can formed from a single conductive sheet, or molded or extruded as a single conductive structure.

L'invention concerne une antenne (100) pour les communications R.F. Cette antenne comprend un élément de rayonnement (102) qui est sensiblement tubulaire de manière à définir une cavité (104) à l'intérieur. Cet élément rayonnant (102) est constitué d'un matériau conducteur pourvu d'une fente non conductrice (106) qui s'étend d'une première partie (108) de l'élément rayonnant (102) vers une seconde partie (110). Un dispositif d'adaptation (120) est électriquement relié à l'élément rayonnant (102) au moyen d'un conducteur (134) afin d'adapter une impédance de l'élément rayonnant (102) à une impédance d'une source de signal ou à une impédance d'une charge. Ce dispositif d'adaptation (120), le conducteur (134) et au moins une partie de l'élément rayonnant (102) peuvent être formés à partir d'une seule feuille conductrice, ou moulés ou extrudés en tant que structure unique conductrice.

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