| 摘要 |
The present invention relates to a dual band antenna for vehicle, comprising a cylindrical member (10) with a hollow bore formed therein; a coil member (20) wound along outer surface of the cylindrical member (10); a coupling member (30) inserted in the hollow bore of the cylindrical member (10); a connector (40) positioned at an end of the coil member (20); and a cover member (50). The coil member (20) receives a frequency band for radio, and receives a frequency band for TDMB (Terrestrial Digital Multimedia Broadcasting) or DAB III (Digital Audio Broadcasting Band III) by means of secondary resonance due to coupling between the coupling member (30) and the coil member (20). Accordingly, the dual band antenna for vehicle can multiply receive signals of frequency bands for radio and TDMB or DAB III as a single antenna. Furthermore, efficiencies of production and installation can be enhanced corresponding to single antennas for radio and TDMB or DAB III. |
