RADIO IC DEVICE
First Claim
1. A radio IC device comprising:
- a high frequency device defined by an electromagnetic coupling module, the electromagnetic coupling module including a radio IC arranged to process transmitted and received signals and a feed circuit board including a feed circuit including an inductance element electrically connected to or electromagnetically coupled to the radio IC and coupled to an external circuit; and
a radiation plate arranged so as to be coupled to the high frequency device;
whereinthe radiation plate is defined by a case of an apparatus and/or a metal component disposed in the apparatus; and
the feed circuit board includes a resonance circuit through which the radio IC is operated by a signal received by the radiation plate, and through which an answer signal from the radio IC is radiated from the radiation plate to the outside.
1 Assignment
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Accused Products
Abstract
A radio IC device includes an electromagnetic coupling module includes a radio IC chip arranged to process transmitted and received signals and a feed circuit board including an inductance element. The feed circuit board includes an external electrode electromagnetically coupled to the feed circuit, and the external electrode is electrically connected to a shielding case or a wiring cable. The shielding case or the wiring cable functions as a radiation plate. The radio IC chip is operated by a signal received by the shielding case or the wiring, and the answer signal from the radio IC chip is radiated from the shielding case or the wiring cable to the outside. A metal component functions as the radiation plate, and the metal component may be a ground electrode disposed on the printed wiring board.
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Citations
21 Claims
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1. A radio IC device comprising:
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a high frequency device defined by an electromagnetic coupling module, the electromagnetic coupling module including a radio IC arranged to process transmitted and received signals and a feed circuit board including a feed circuit including an inductance element electrically connected to or electromagnetically coupled to the radio IC and coupled to an external circuit; and a radiation plate arranged so as to be coupled to the high frequency device;
whereinthe radiation plate is defined by a case of an apparatus and/or a metal component disposed in the apparatus; and the feed circuit board includes a resonance circuit through which the radio IC is operated by a signal received by the radiation plate, and through which an answer signal from the radio IC is radiated from the radiation plate to the outside. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification