Wireless communication device and article including the same
AssigneeMurata Manufacturing Co., Ltd.
InventorsMakoto TAKEOKA, Noboru KATO
Life of this patent
Estimating the term…
Abstract
A wireless communication device includes an antenna resonance circuit and a wireless IC element. The antenna resonance circuit includes a loop-shaped antenna that performs wireless communication by generating a magnetic field and series inductors connected in series to the loop-shaped antenna. The antenna resonance circuit has a resonant frequency corresponding to a carrier frequency. The wireless IC element is connected to the antenna resonance circuit and processes transmission and reception signals. An inductance value of the series inductors is larger than an inductance value of the loop-shaped antenna, and the series inductors are covered with a magnetic material.
Claims16
A wireless communication device comprising:
- an antenna resonance circuit including an antenna that performs wireless communication by generating a magnetic field, and a series inductor connected in series to the antenna, the antenna resonance circuit having a resonant frequency corresponding to a carrier frequency;
- and
- a wireless IC element that is connected to the antenna resonance circuit and that processes transmission and reception signals;
- wherein
- the antenna of the antenna resonance circuit is a loop-shaped and one-turned antenna including a linear conductor;
- and
- the series inductor includes a coil conductor within a magnetic material.
An article comprising:
- a wireless communication device;
- and
- a metal body;
- wherein
- the wireless communication device includes:
- an antenna resonance circuit including an antenna that performs wireless communication by generating a magnetic field, and a series inductor connected in series to the antenna, the antenna resonance circuit having a resonant frequency corresponding to a carrier frequency;
- and
- a wireless IC element that is connected to the antenna resonance circuit and that processes transmission and reception signals;
- wherein
- the antenna of the antenna resonance circuit is a loop-shaped and one-turned antenna including a linear conductor;
- the series inductor includes a coil conductor within a magnetic material;
- and
- the metal body is disposed adjacent to the antenna.
Dependencies are inferred from the claim text.