| 摘要 |
An antenna comprises metal wiring, an antenna feeder and a power supply connector which are arranged on a printed circuit board (PCB). The metal wiring and the antenna feeder are connected at a feed point; one surface of the antenna which is opposite or the same as the feed point is provided with a reactance element on the PCB; and when a radio-frequency signal of the antenna is of a low frequency, the reactance element is made to be conducting, and when the radio-frequency signal of the antenna is of a high frequency, a control switch of the reactance element is made to be conducting. The abovementioned technical solution can achieve a wide coverage frequency band and higher radiation efficiency of an antenna simultaneously. |
