Wireless communication device
AssigneeMurata Manufacturing Co., Ltd.
InventorsNoboru Kato, Hirokazu Yazaki
Life of this patent
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Abstract
An RFID tag is providing for transmitting and receiving a communication signal. The RFID tag includes a base material, antenna patterns formed on the base material, and an RFIC package connected to the antenna patterns. The antenna patterns are defined by conductor patterns. The whole of the antenna patterns resonate at a communication frequency, and each of the plurality of conductor patterns has a line length that does not cause resonance at a frequency in a microwave band for electromagnetic wave heating higher than the communication frequency.
Claims20
A wireless communication device for transmitting and receiving a communication signal, the wireless communication device comprising:
- a base material;
- an antenna pattern disposed on the base material and comprising a plurality of conductor patterns, with adjacent conductor patterns of the plurality of conductor patterns coupled to each other;
- and
- a power feeding circuit connected to the antenna pattern,
- wherein the antenna pattern is configured to resonate with a whole of the plurality of conductor patterns at a frequency of the communication signal, and
- wherein each of the plurality of conductor patterns has a line length constructed to not resonate at a frequency in a microwave band for electromagnetic wave heating that is higher than the frequency of the communication signal.
A wireless communication device for transmitting and receiving a communication signal, the wireless communication device comprising:
- a base material;
- a power feeding circuit coupled to the base material;
- and
- an antenna pattern disposed on the base material coupled to the power feeding circuit,
- wherein the antenna pattern comprises a plurality of conductor patterns, with adjacent conductor patterns of the plurality of conductor patterns coupled to each other and with respective pairs of the plurality of conductor patterns coupled to each other by electric field coupling,
- wherein the antenna pattern is configured to resonate with a whole of the plurality of conductor patterns at a frequency of the communication signal, and
- wherein each of the plurality of conductor patterns does not resonate at a frequency in a microwave band for electromagnetic wave heating.
Dependencies are inferred from the claim text.