Wireless IC device and component for wireless IC device
First Claim
1. A wireless IC device comprising:
- a wireless IC chip;
a circuit board connected to the wireless IC chip, and including a resonant circuit having a predetermined resonant frequency, the resonant circuit being located inside of the circuit board; and
a radiation pattern arranged to perform at least one of radiation of a transmission signal supplied from the resonant circuit, and receipt of a reception signal to be supplied to the resonant circuit;
whereinat least one of the transmission signal and the reception signal has a frequency substantially equal to the resonant frequency of the resonant circuit.
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Accused Products
Abstract
A wireless IC device includes a wireless IC chip, a power supply circuit board upon which the wireless IC chip is mounted, and in which a power supply circuit is provided, the power supply circuit includes a resonant circuit having a predetermined resonant frequency, and a radiation pattern, which is adhered to the underside of the power supply circuit board, for radiating a transmission signal supplied from the power supply circuit, and for receiving a reception signal to supply this to the power supply circuit. The resonant circuit is an LC resonant circuit including an inductance device and capacitance devices. The power supply circuit board is a multilayer rigid board or a single-layer rigid board, and between the wireless IC chip and the radiation pattern is connected by DC connection, magnetic coupling, or capacitive coupling.
81 Citations
15 Claims
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1. A wireless IC device comprising:
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a wireless IC chip; a circuit board connected to the wireless IC chip, and including a resonant circuit having a predetermined resonant frequency, the resonant circuit being located inside of the circuit board; and a radiation pattern arranged to perform at least one of radiation of a transmission signal supplied from the resonant circuit, and receipt of a reception signal to be supplied to the resonant circuit;
whereinat least one of the transmission signal and the reception signal has a frequency substantially equal to the resonant frequency of the resonant circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification