| 摘要 |
PROBLEM TO BE SOLVED: To provide a downsized antenna device while achieving a wider bandwidth.SOLUTION: An antenna device 51 includes a first antenna element unit 511 that acts as a first planar antenna and a second antenna unit 512 that acts as a monopole antenna and a second planar antenna having an antenna length greater than that of the first planar antenna. Thus, it is possible to provide the antenna device and a radio terminal that are downsized while achieving a wider bandwidth so that all radio signals in the frequency band can be transmitted and received. |
