Dual mode mobile terminal system

1. A dual mode mobile terminal system, comprising:

an antenna for receiving and transmitting wireless signals;

a switch electrically connected to the antenna, including a signal control port;

a diplexer electrically connected to the switch, the diplexer for receiving and transmitting a first wireless signal, and isolating the receiving path and the transmitting path of the first wireless signal;

a first communication module electrically connected to the diplexer, the first communication module for processing the first wireless signal from the diplexer;

a second communication module electrically connected to the switch, the second communication module for receiving a second wireless signal from the switch; and

a first power amplifier electrically connected to the switch and the second communication module, the first power amplifier for receiving and amplifying the second wireless signal, the first power amplifier including a signal control pin, a signal output pin, and a signal input pin;

wherein the antenna is selectably connected to the diplexer or the first power amplifier through the switch, the antenna, the switch, the diplexer, and the first communication module form a first signal transmission path to transmit and receive the first wireless signal; the antenna, the switch, the first power amplifier, and the second communication module form a second signal transmission path to transmit and receive the second wireless signal;

the signal control pin is electrically connected to the signal control port to provide an enabled command signal to control the antenna switch from the diplexer to the first power amplifier; the signal output pin and the signal input pin are electrically connected to the second communication module to transmit and receive the second wireless signal;

the switch comprises an antenna port, a first signal transceiving port, and a second transceiving port, the antenna port is electrically connected to the antenna to communicate wireless signals with the antenna, the first signal transceiving port is electrically connected to the diplexer to transmit and receive the first wireless signal, and the second signal transceiving port is electrically connected to the first power amplifier to transmit and receive the second wireless signal;

the first power amplifier comprises an antenna signal pin, the antenna signal pin is electrically connected to the second transceiving port to receive and send the second wireless signal;

the second communication module comprises a signal receiving pin and a signal transmitting pin, the signal receiving pin is electrically connected to the signal output pin to receive the second wireless signal, the signal transmitting pin is electrically connected to the signal input pin to transmit the second wireless signal; the signal output pin and the diplexer are electrically connected to each other.

2. The dual mode mobile terminal system as claimed in claim 1 , wherein when the signal control pin provides an enabled command signal for the signal control port, the antenna port is switched from the first transceiving port to the second transceiving port, and the first signal transmission path is switched to the second signal transmission path.

3. The dual mode mobile terminal system as claimed in claim 1 , wherein the second communication module modulates the second wireless signal from the first power amplifier, and demodulating baseband signal into corresponding second wireless signal.

4. The dual mode mobile terminal system as claimed in claim 1 , further comprising a second power amplifier, wherein the second power amplifier is electrically connected to the diplexer and the first communication module, and the second power amplifier amplifies the first wireless signal from the first communication module, the amplified first wireless signal is transmitted to the diplexer.

5. The dual mode mobile terminal system as claimed in claim 1 , further comprising a second power amplifier, wherein the diplexer comprises an antenna signal interface, a signal receiver port and a signal transmitter port, the antenna signal interface is electrically connected to the first transceiving port to receive and transmit the first wireless signal, the signal receiver port is electrically connected to the first communication module, the signal transmitter port is electrically connected to the second power amplifier.

6. The dual mode mobile terminal system as claimed in claim 5 , wherein the signal receiver port and the signal transmitter port are isolated from each other to respectively receive the first wireless signal from the antenna signal interface and send the first wireless signal to the antenna signal interface to avoid signal interference.

7. The dual mode mobile terminal system as claimed in claim 4 or 5 , wherein the first power amplifier is a non-linear amplifier, the second power amplifier is a linear amplifier.

8. The dual mode mobile terminal system as claimed in claim 1 , further comprising a baseband chip electrically connected to the second communication module and the first communication module, wherein the baseband chip receives baseband signals, decodes the baseband signals into corresponding audio signals, or compiles audio signals into corresponding baseband signals for the second communication module and the first communication module.

9. A dual mode mobile terminal system, comprising:

an antenna for receiving and transmitting wireless signals;

a switch electrically connected to the antenna and forming two different signal transmission paths, and including a signal control port;

a diplexer electrically connected to the switch, the diplexer for receiving and transmitting a first wireless signal, and isolating the receiving path and the transmitting path of the first wireless signal;

a first communication module electrically connected to the diplexer, the first communication module for processing the first wireless signal from the diplexer to generate a corresponding baseband signal;

a second communication module electrically connected to the switch, the second communication module for receiving a second wireless signal from the switch to generate a corresponding baseband signal; and

a first power amplifier electrically connected to the switch and the second communication module, the first power amplifier that receives the second wireless signal from the switch and amplifies the second wireless signal from the second communication module, the first power amplifier including a signal control pin, a signal output pin, and a signal input pin;

wherein the diplexer, the first power amplifier, the first communication module and the first communication module are electrically connected to each other, the antenna is selectably and electrically connected to the diplexer or the first power amplifier through the switch, when the antenna is electrically connected to the diplexer, the antenna, the switch, the diplexer, and the first communication module form a first signal transmission path to transmit and receive the first wireless signal; when the antenna is electrically connected to the first power amplifier, the antenna, the switch, the first power amplifier, and the second communication module form a second signal transmission path to transmit and receive the second wireless signal;

the signal control pin is electrically connected to the signal control port to provide an enabled command signal to control the antenna switch from the diplexer to the first power amplifier; the signal output pin and the signal input pin are electrically connected to the second communication module to transmit and receive the second wireless signal;

the switch comprises an antenna port, a first signal transceiving port, and a second transceiving port, the antenna port is electrically connected to the antenna to communicate wireless signals with the antenna, the first signal transceiving port is electrically connected to the diplexer to transmit and receive the first wireless signal, and the second signal transceiving port is electrically connected to the first power amplifier to transmit and receive the second wireless signal;

the first power amplifier comprises an antenna signal pin, the antenna signal pin is electrically connected to the second transceiving port to receive and send the second wireless signal;

the second communication module comprises a signal receiving pin and a signal transmitting pin, the signal receiving pin is electrically connected to the signal output pin to receive the second wireless signal, the signal transmitting pin is electrically connected to the signal input pin to transmit the second wireless signal, the signal output pin and the diplexer are electrically connected to each other.

10. The dual mode mobile terminal system as claimed in claim 9 , wherein when the signal control pin provides an enabled command signal for the signal control port, the antenna port is switched from the first transceiving port to the second transceiving port, and the first signal transmission path is switched to the second signal transmission path.

11. The dual mode mobile terminal system as claimed in claim 9 , wherein the second communication module modulates the second wireless signal from the first power amplifier, and demodulating baseband signal into corresponding second wireless signal.

12. The dual mode mobile terminal system as claimed in claim 9 , further comprising a second power amplifier amplifying the first wireless signal from the first communication module, wherein the diplexer comprises an antenna signal interface, a signal receiver port and a signal transmitter port, the antenna signal interface is electrically connected to the first transceiving port to receive and transmit the first wireless signal, the signal receiver port is electrically connected to the first communication module, the signal transmitter port is electrically connected to the second power amplifier.

13. The dual mode mobile terminal system as claimed in claim 12 , wherein the signal receiver port and the signal transmitter port are isolated from each other to respectively receive the first wireless signal from the antenna signal interface and send the first wireless signal to the antenna signal interface to avoid signal interference.

14. The dual mode mobile terminal system as claimed in claim 9 , further comprising a baseband chip electrically connected to the second wireless communication module and the first communication module, wherein the baseband chip receives baseband signals, decoding the baseband signals into corresponding audio signals, or compiling audio signals into corresponding baseband signals for the second communication module and the first communication module.