| 摘要 |
<p>A dual-resonance antenna reduced in size without deteriorating electric characteristics. The antenna comprises a first coil portion (21) and a second coil portion (23) wound helically and a connecting portion (22) extending downward from the upper end of the first coil portion (21) and through the first coil portion (21) generally along the center axis of the first coil portion (21). The lower end of the connection portion (22) is connected to the upper end of the second coil portion (23), to the lower end of which the electric power is supplied from a power supply unit (24).</p> |
