| 摘要 |
PURPOSE: An antenna device for a radio communication terminal is provided to reduce a specific absorption rate of electromagnetic waves transmitted to a human body by improving a structure of antenna device. CONSTITUTION: An antenna device for a radio communication terminal is with by combining a helical antenna having length ofλ/4 adapted for a standby state of signal and a communication state of signal with a monopole type whip antenna. A loading coil(102) is wound in the inside of a molding body formed with a non-conductive material. The loading coil(102) is wound with a spiral shape in order to transmit and receive effectively radio frequencies in the standby state of signal and the communication state of signal. The loading coil(102) is formed with a linear portion(102a) and a curve portion(102b) in order to reduce a specific absorption rate of electromagnetic waves transmitted to a human body. |
