| 摘要 |
An antenna device includes a first belt-like radiation conductor (21) and a second belt-like radiation conductor (22). The first belt-like radiation conductor (21) extends from a power supply portion (P) in the shape of a loop, and a tip portion (21a) of the first belt-like radiation conductor (21) is capacitively coupled to the power supply portion (P). The second belt-like radiation conductor (22) substantially faces the first belt-like radiation conductor (21) over the entire length thereof through a dielectric layer (20). The power supply portion (P) is connected to a tuning circuit (6). One end of the second belt-like radiation conductor (22) is connected to the first belt-like radiation conductor (21) in the vicinity of the power supply portion (P), and the other end of the second belt-like radiation conductor (22) is formed of an open end.
|
