MULTI-BAND ANTENNA AND BOARD FOR THE SAME

摘要

There is herein disclosed a multi-band antenna with enhanced gain and sensitivity by improving isolation between antenna elements. The multi-band antenna in accordance with the present invention includes a first antenna unit including a first feed element connected to a feed unit of the antenna and a first antenna element electrically connected to the first feed element, the first antenna element being adapted to resonate at a first frequency band, a second antenna unit including a second feed element connected to the feed unit of the antenna and a second antenna element electrically connected to the second feed element, the second antenna element being adapted to resonate at a second frequency band, and an isolation unit disposed between the first feed element and the second feed element and electrically connected to a ground surface of the antenna, the isolation unit being formed of a conductive material. Thus, isolation between the first antenna unit and the second antenna unit is improved through the isolation unit. Ac¬ cordingly, according to the present invention, isolation between antennas can be improved, and a phenomenon in which one antenna acts on the other antenna as a noise source, thus degrading gain and sensitivity, can be prevented.