RADIO IC DEVICE
1 Assignment
0 Petitions
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.
-
Citations
14 Claims
-
1. (canceled)
-
2. A radio IC device comprising:
-
a radio IC arranged to process transmitted and received signals; an inductance element electrically connected to or electromagnetically coupled to the radio IC; and a radiation plate arranged so as to be coupled to the inductance element;
whereinthe radiation plate is defined by at least one of a case of an apparatus and a metal component disposed in the apparatus, and a loop electrode is provided in a portion of the at least one of the case and the metal component; and the inductance element is coupled to the loop electrode via a magnetic field. - View Dependent Claims (4, 5, 7, 9, 11, 13)
-
-
3. A radio IC device comprising:
-
a radio IC arranged to process transmitted and received signals; an inductance element electrically connected to or electromagnetically coupled to the radio IC; and a radiation plate arranged so as to be coupled to the inductance element;
whereinthe radiation plate is defined by at least one of a case of an apparatus and a metal component disposed in the apparatus; and the inductance element is provided adjacent to an edge of the radiation plate, and coupled to the radiation plate via a magnetic field generated by current flowing in the edge of the radiation plate. - View Dependent Claims (6, 8, 10, 12, 14)
-
Specification