| 摘要 |
The present invention relates to a multi-arm trap antenna used in a wireless communication device. The present invention comprises: at least two supporting arms including at least one supporting arm segment; an inductor device; at least one trap assembly electrically connected to the supporting arm segment of the supporting arm; a signal feed element to connect the positive and negative poles of a wireless frequency signals to at least one supporting arm; and a ground element for forming a unipolar antenna by providing ground connection by being electrically connected to the negative pole of the wireless frequency signal, for forming an F type antenna by electrically connecting the negative pole of the wireless frequency signal to the supporting arm, electrically connected to the two poles of the wireless frequency signal, and for forming a coupling slot hole type antenna by electrically connecting the negative pole of the wireless frequency signal to at least one supporting arm. The supporting arm is curved at a lower position to access the ground element to lower the height of the antenna and uses a certain antenna composition such as unipolar, inverted F type, and coupling slot hole type, thereby minimizing the multi-arm trap antenna and making the same have the multi-frequency and broadband characteristics. |
