| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiband antenna device in which impedance matching can be easily performed without degradation of antenna characteristics.SOLUTION: A radiation element branch circuit 30 comprises: a loading reactance element X1 for low band that is provided between a branch point BP included in the radiation element branch circuit 30 and a radiation element 11 for low band; and a branch-source loading reactance element X3 that is provided between the branch point BP and a feeding point FP. Each of the loading reactance element X1 for low band and the branch-source loading reactance element X3 is an inductor constituted by a coil pattern, and the loading reactance element X1 for low band and the branch-source loading reactance element X3 are electromagnetic-field-coupled to each other. |
