| 摘要 |
<p>Disclosed is a communication terminal apparatus, whereby communication characteristics are improved, and other electronic apparatuses can be efficiently disposed in a space. Also disclosed is an antenna device. The antenna device is provided with a coil conductor (10) and a booster conductor (20). The coil conductor (10) has loop-like conductors (11, 12) wound therein, a first opening (14) at the winding center portion, and both the end portions connected to a power supply circuit. The booster conductor (20) is configured of a coupling conductor portion (21) and a frame-like radiation conductor portion (25). The coupling conductor portion (21) has a second opening (22) that at least partially overlaps the first opening (14), and has a part of the coupling conductor cut at a slit (23), and the coupling conductor portion is coupled with the coil conductor (10) by electromagnetic field coupling. The frame-like radiation conductor portion (25) has a third opening (26), and is connected to the coupling conductor portion (21).</p> |
