Patent ID: 11929544
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 15:
16. A wireless communication device for transmitting and receiving a signal having a first frequency for communication, the wireless communication device comprising:
a loop pattern;
an antenna pattern connected to the loop pattern;
a first electrode configured as a first end of the loop pattern;
a second electrode arranged at an interval from the first electrode and configured as a second end of the loop pattern;
a third electrode capacitively coupled to the first electrode;
a fourth electrode capacitively coupled to the second electrode;
a first current path and a second current path connected in parallel with each other and arranged between the third electrode and the fourth electrode;
a first resonance circuit that includes the first current path and the second current path and that has an impedance characteristic of resonating at the first frequency and short-circuiting at a second frequency higher in frequency than the first frequency;
a second resonance circuit that includes the loop pattern and the second current path, and that is configured to resonate at the first frequency; and
an RFIC included in the first current path,
wherein the antenna pattern and the second resonance circuit are configured to resonate at the second frequency or at a frequency higher than the second frequency.