Movable antenna and inspection apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorSadatoshi Oishi
Life of this patent
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Abstract
According to one embodiment, a movable antenna includes a holder, an antenna radiating element attached to the holder, a first feed element that is attached to the holder and electromagnetically coupled to the antenna radiating element, a base plate in a facing arrangement with the holder, a second feed element on the base plate and configured to face and overlap at least a portion of the first feed element, and a mechanism that moves the holder in a longitudinal direction of the second feed element while maintaining an interval between the first and second feed element permitting energy to be transferred between the first and second feed elements.
Claims16
A movable antenna, comprising:
- an antenna radiating element;
- a first feed element configured to feed power to the antenna radiating element by a proximity coupling feeding method via a first dielectric material between the first feed element and the antenna radiating element;
- a second feed element configured to feed power to the first feed element by the proximity coupling feeding method via a second dielectric material between the first and second feed elements;
- a mechanism configured to move the antenna radiating element and the first feed element in a first direction while maintaining an interval between the first and second feed elements in a second direction intersecting the first direction;
- and
- a controller configured to control the mechanism to move, during a tag reading process, the antenna radiating element and the first feed element while maintaining the interval.
An electronic tag reading apparatus, comprising:
- a casing including a chamber into which an electronic tag can be placed for reading;
- a movable antenna in proximity to the chamber, the movable antenna comprising:
- an antenna radiating element;
- a first feed element configured to feed power to the antenna radiating element by a proximity coupling feeding method via a first dielectric material between the first feed element and the antenna radiating element;
- a second feed element configured to feed power to the first feed element by the proximity coupling feeding method via a second dielectric material between the first and second feed elements;
- a mechanism configured to move the antenna radiating element and the first feed element in a first direction while maintaining an interval between the first and second feed elements in a second direction intersecting the first direction;
- and
- a controller configured to control the mechanism to move, during a tag reading process, the antenna radiating element and the first feed element while maintaining the interval.
Dependencies are inferred from the claim text.