| 摘要 |
<p>The system is designed to transmit and receive in a number of frequency bands using a number of cascaded diplexors (2 channel switches) (410,415). At least one diplexor has a switchable transfer function. The first (410) diplexor's channel is connected to an antenna (400) and the common channel of each following diplexor is connected to the preceding diplexor. The second channel of each diplexor as well as the last way of the last diplexor (415) are connected to time or frequency duplex means (430,440,450) ensuring the transmission and reception of one of the frequency bands</p> |
