Planar antenna for multi-requency mobile phones

The plane antenna comprises following parts: Dielectric basis material possesses first and second surfaces; antenna part comprises first and second antenna subsections possessing first and second surfaces with relevant loop being wound. Feedthrough terminal located on the dielectric basis is connected to antenna part. Conduction interface is connected to the first and second antenna subsections electrically. The first antenna subsection is suitable for inducing electromagnetic wave signal in low frequency, and the second antenna subsection is suitable for inducing electromagnetic wave signal in high frequency. Thus, bandwidth is raised to cover range in three frequencies. 本发明是在提供一种多频移动电话平面天线，包含有一具有第一、二表面的介电基材，具有分别以回路绕集方式设置于该第一、二表面的第一、二天线部的一天线部，一位于该介电基材上且连接该天线部的讯号馈入端，以及一用以电连接第一、二天线部的传导介面，该第一天线部是适用于感应一低频电磁波信号，该第二天线部则是适用于感应一高频电磁波信号，借此能轻易提高频宽至涵盖三频范围。