Portal antenna

H - Electricity – 01 – Q

Patent

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Details

H01Q 11/12 (2006.01)

Patent

CA 2626228

A portal antenna (10) particularly suited for enabling low frequency RFlD devices carried by animals to be read when animals are proceeding through a stock race or the like. The portal antenna includes a portal structure (11) through which an animal can pass and about which is wound at least one coil (18/19) of antenna conductor. At least one elongate radiator element (21) preferably projects to at least one side of the portal structure (11). Preferably the radiator(s) (21) is/are of ferrous/magnetically conductive metal. The radiator(s) can form a separate structure or be part of the wall structure of a stock race.

La présente invention concerne une antenne de portail (10) qui convient particulièrement à la lecture des dispositifs RFID basse fréquence portés par des animaux qui participent à un jeu de course ou semblable. L~antenne de portail comprend une structure de portail (11) par laquelle un animal peut passer et qui est enroulée autour au moins un échangeur (18/19) du conducteur d~antenne. Au moins un élément rayonnant de forme allongée (21) peut également s~étendre vers au moins un côté de la structure du portail (11). De préférence, l~élément rayonnant (21) est composé de métal conducteur ferreux ou magnétique. L~élément rayonnant peut former une structure distincte ou faire partie de la structure des parois d~un jeu de course.

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