Wireless ic device
AssigneeMurata Manufacturing Co., Ltd.
InventorsNoboru KATO, Nobuo IKEMOTO
Life of this patent
Estimating the term…
Abstract
A wireless IC device includes a wireless IC chip arranged to process a radio signal, a power-supply circuit board that is connected to the wireless IC chip and that includes a power supply circuit including at least one coil pattern, and a radiation plate arranged to radiate a transmission signal supplied from the power-supply circuit board and/or receiving a reception signal to supply the reception signal to the power-supply circuit board. The radiation plate includes an opening provided in a portion thereof and a slit connected to the opening. When viewed in plan from the direction of the winding axis of the coil pattern, the opening in the radiation plate overlaps with an inner area of the coil pattern and the area of the inner area is approximately the same as that of opening.
Claims13
A wireless integrated circuit device comprising:
- a wireless integrated circuit arranged to process a radio signal;
- a power-supply circuit board connected to the wireless integrated circuit and including a power supply circuit including at least one coil pattern;
- and
- a radiation plate arranged to radiate a transmission signal supplied from the power-supply circuit board or to receive a reception signal to supply the reception signal to the power-supply circuit board;
- wherein
- the radiation plate includes an opening provided in a portion thereof and a slit connected to the opening and, when viewed in plan from a direction of a winding axis of the at least one coil pattern, the opening in the radiation plate overlaps with at least a portion of an inner area of the coil pattern.
Dependencies are inferred from the claim text.