| 摘要 |
A PC 1 includes a plurality of radio modules (10a, 10b, 10c, ...) different in a frequency band from one another, an antenna (7) common to these, and a dielectric material (8) movably disposed on one plane side of the antenna (7). An interval between the antenna (7) and dielectric material (8) is set to be adjustable for each of the respective radio modules (10a, 10b, 10c, ...), and thereby a resonance frequency of the antenna (7) is switched. |
