| 摘要 |
<p>A transmitter. The transmitter comprises an antenna. The antenna comprises a short branch connected to an antenna feedpoint and a long branch coupled to the short branch. The short branch is used for sending a high-frequency signal of signals to be sent, and the long branch is used for sending a low-frequency signal of the signals to be sent. The long branch is connected to the earth by means of a matching circuit. The matching circuit is used for regulating the long branch, so that the long branch is corresponding to at least two low-frequency frequency bands. By using the transmitter provided in an embodiment of the present invention, the bandwidth of an antenna can be effectively increased.</p> |
