Patent ID: 11916317
Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 5:
6. An antenna member for use in a radio frequency identification (RFID) tag, the antenna member comprising:
a base member which is an electrical insulator; and
an antenna portion formed on the base member, wherein:
the antenna portion has a split-ring resonator portion and an impedance matching portion;
the split-ring resonator portion has a first part and a second part;
the first part has two first end portions;
one of the first end portions is provided with a first facing portion;
a remaining one of the first end portions is provided with a first connection portion;
the second part has two second end portions;
one of the second end portions is provided with a second facing portion;
a remaining one of the second end portions is provided with a second connection portion;
the first facing portion and the second facing portions are apart from and face each other;
the impedance matching portion has two third end portions;
one of the third end portions is connected to the first part between the first facing portion and the first connection portion;
a remaining one of the third end portions is connected to the second part between the second facing portion and the second connection portion; and
the first connection portion and the second connection portion are arranged apart from and in proximity to each other.