| 摘要 |
A transceiver includes an antenna, an impedance adjustment device, an RF (Radio Frequency) front-end circuit, a storage device, and a processor. The antenna receives an RF signal. The impedance adjustment device is coupled to the antenna, and includes a plurality of branch circuit with different impedance values and a switch module. The processor is coupled to the RF front-end circuit and controls the switch modules. In a comparison mode, the switch module selects to connect to the branch circuits individually, and the processor detects each RSSI (Received Signal Strength Indications) value corresponding to the branch circuit and records all of the RSSI values to the storage device respectively. In the comparison mode, the processor further compares the RSSI values to for highest one. Finally, the switch module selects the branch circuit corresponding to the highest RSSI value as a transmission branch. |
| 主权项 |
1. A transceiver, comprising:
an antenna, receiving an RF (Radio Frequency) signal; an impedance adjustment device, coupled to the antenna, and comprising:
a plurality of branch circuits, each of the branch circuits having different impedance values; anda switch module, selecting one of the branch circuits as a transmission branch according to a control signal; an RF front-end circuit, receiving the RF signal from the antenna through the transmission branch, and filtering and amplifying the RF signal; a storage device; and a processor, coupled to the RF front-end circuit, and generating the control signal, wherein the switch module selectively connects to each of the branch circuits individually, the processor detects a RSSI (Received Signal Strength Indication) value corresponding to each of the branch circuits respectively, records all of the RSSI values in the storage device, and compares the RSSI values in a comparison mode. wherein the switch module selects the branch circuit corresponding to the highest RSSI value as the transmission branch. |
