High-frequency device and wireless IC device
First Claim
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1. A high-frequency device comprising:
- a wireless IC;
a radiator plate; and
a board coupled to the wireless IC and electrically connected to the radiator plate;
whereina static electricity countermeasure element is provided in the board;
the static electricity countermeasure element includes an inductor connected in parallel between the wireless IC and the radiator plate; and
an impedance of the inductor at a frequency of static electricity is less than an impedance of the wireless IC.
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Abstract
A high-frequency device includes a wireless IC chip and a board which is coupled to the wireless IC chip and electrically connected to radiator plates, and an inductor and/or a capacitance are provided as a static electricity countermeasure element in the board. The inductor is connected in parallel between the wireless IC chip and the radiator plates, and its impedance at the frequency of static electricity is less than an impedance of the wireless IC chip.
132 Citations
13 Claims
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1. A high-frequency device comprising:
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a wireless IC; a radiator plate; and a board coupled to the wireless IC and electrically connected to the radiator plate;
whereina static electricity countermeasure element is provided in the board; the static electricity countermeasure element includes an inductor connected in parallel between the wireless IC and the radiator plate; and an impedance of the inductor at a frequency of static electricity is less than an impedance of the wireless IC. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless IC device comprising:
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a wireless IC; a radiator plate; and a board coupled to the wireless IC and electrically connected to the radiator plate;
whereina static electricity countermeasure element is provided in the board; the static electricity countermeasure element includes an inductor connected in parallel between the wireless IC and the radiator plate; and an impedance of the inductor at a frequency of static electricity is less than an impedance of the wireless IC. - View Dependent Claims (8, 9, 10, 11)
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12. A wireless IC device comprising:
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a wireless IC; a radiator plate; and a board coupled to the wireless IC and electrically connected to the radiator plate;
whereina static electricity countermeasure element is provided in the board; and the radiator plate includes, at least at a pair of end portions, loop electrodes coupled to the static electricity countermeasure element.
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13. A wireless IC device comprising:
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a wireless IC; a radiator plate; and a board coupled to the wireless IC and electrically connected to the radiator plate;
whereina static electricity countermeasure element is provided in the board; and the radiator plate includes, at least at a pair of end portions thereof, loop electrodes coupled to the static electricity countermeasure element, and dipole electrodes coupled to the loop electrodes.
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Specification