Rfid antenna, rfid tag, and physical quantity measurement device
AssigneeNagano Keiki Co., Ltd.
InventorsRyousuke Kubo, Hideki Muramatsu
Life of this patent
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Abstract
An RFID antenna includes: an insulating substrate; a first antenna pattern in a form of a spiral coil, the first antenna pattern being provided on a first surface of the insulating substrate; and a second antenna pattern in a form of a spiral coil, the second antenna pattern being provided on a second surface of the insulating substrate and electrically connected with the first antenna pattern. The first antenna pattern and the second antenna pattern each include a main antenna portion that is provided at a position for the first antenna pattern and the second antenna pattern not to be overlapped in a plan view of the first surface with the second surface being seen through the first surface.
Claims6
An RFID antenna comprising:
- an insulating substrate;
- a first antenna pattern in a form of a first spiral coil, the first antenna pattern being provided on a first surface of the insulating substrate;
- and
- a second antenna pattern in a form of a second spiral coil, the second antenna pattern being provided on a second surface of the insulating substrate and electrically connected with the first antenna pattern, wherein
- the first antenna pattern and the second antenna pattern respectively comprise a first main antenna portion and a second main antenna portion, the first main antenna portion and the second main antenna portion being disposed at positions for the first antenna pattern and the second antenna pattern not being overlapped in a plan view of the first surface with the second surface being seen through the first surface.
Dependencies are inferred from the claim text.