| 摘要 |
<p>A four frequency bands Global system for Mobile Communication (GSM) transceiver and a radio terminal are disclosed in the present utility model. Besides an antenna, the GSM transceiver also includes: a double-frequency antenna switch, connected with the antenna and two filter selection units separately; two filter selection units, the input ports of which are separately connected with two receiving frequency bands channels corresponding to the double-frequency antenna switch; four filters in different frequency bands, the input ports of two filters therein of which are connected with the same one of the two filter selection units, and the input ports of other two filters of which are connected with the other one of the two filter selection units; a radio frequency transceiving chip with two receiving channels, wherein one receiving channel is connected with output ports of the two filters therein separately, and the other receiving channel is connected with output ports of other two filters separately. According to the technical solution provided in the present utility model, the difficulty of wiring topology can be reduced, and cost of hardware in the solution of four frequency bands GSM can be minimized.</p> |
