RFID ANTENNA, RFID TAG, AND PHYSICAL QUANTITY MEASUREMENT DEVICE

摘要

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.