Patent ID: 8611958

Claim:
A portable wireless device comprising: a body; a first communication unit arranged in the body and including a first antenna unit that communicates with an external device by way of a first frequency band, and a first information processing unit that performs predetermined processing with respect to information communicated by the first antenna unit; a second communication unit arranged in the body and including a second antenna unit that is disposed in the vicinity of the first antenna unit and communicates by way of a second frequency band, which is higher than the first frequency band, and a second information processing unit that performs predetermined processing with respect to information communicated by the second antenna unit; and a high-frequency cutoff unit for cutting off high frequency to the first antenna unit such that at least a portion of the first antenna unit becomes a passive element of the second antenna unit, wherein the high-frequency cutoff unit comprises one or more band-limiting elements in contact with the first antenna unit, and wherein the one or more band-limiting elements have high impedance in the second frequency band and low impedance in the first frequency band, wherein the high-frequency cutoff unit cuts off high frequency to the first antenna unit such that a length thereof is a half wavelength or a quarter wavelength of the usable frequency band of the second antenna unit, and wherein the second frequency band of the second antenna unit is a frequency band overlapping a high-order secondary resonance point of the first frequency band of the first antenna unit, wherein the first antenna unit is a magnetic field antenna, and wherein the high-frequency cutoff unit exhibits high impedance in a frequency band relating to the high-order secondary resonance point.