Wireless transceiver and method of controlling the wireless transceiver

摘要

A transceiver includes: a first transforming network arranged for using a first input impedance to receive a first modulated signal and using a first output impedance to output a first transformed signal during a transmitting mode of a first communication standard, and for using the first input impedance to receive a second modulated signal and using a second output impedance to output a second transformed signal during the transmitting mode of a second communication standard; a second transforming network arranged for using a second input impedance to receive the second transformed signal and using a third output impedance to output a first RF signal to a connecting port of the transceiver during the transmitting mode of the second communication standard; a power amplifier, arranged to generate a second RF signal; and a switching circuit for selectively coupling the second transformed signal to the second transforming network.

主权项

1. A transceiver, comprising:
a first transforming network, having a first input impedance, a first output impedance, and a second output impedance, arranged for using the first input impedance to receive a first modulated signal and using the first output impedance to output a first transformed signal during a transmitting mode of a first communication standard, and for using the first input impedance to receive a second modulated signal and using the second output impedance to output a second transformed signal during the transmitting mode of a second communication standard; a second transforming network, having a second input impedance and a third output impedance, arranged for using the second input impedance to receive the second transformed signal and using the third output impedance to output a first RF signal to a connecting port of the transceiver during the transmitting mode of the second communication standard; a power amplifier, arranged to generate a second RF (Radio frequency) signal to the connecting port of the transceiver according to the first transformed signal during the transmitting mode of the first communication standard; and a switching circuit, coupled between the first transforming network and the second transforming network, for coupling the second transformed signal to the second transforming network during the transmitting mode of the second communication standard, and not coupling the second transformed signal to the second transforming network during the transmitting mode of the first communication standard.