Patent ID: 7796950

Claim:
A mobile communication device, comprising: a central processing unit (CPU), for processing signals; a first antenna, for transmitting and receiving first signals; a first front-end circuit between the first antenna and the CPU, and connected to the first antenna, the first front-end circuit comprising: a first switch, for switching between transmitting and receiving functions of the first front-end circuit; a first power amplifier directly connected between the first switch and a first transceiver module, for amplifying signals from the CPU; and a first filter directly connected between the first switch and said first antenna, for filtering signals from the first antenna; a second antenna, for transmitting and receiving second signals; and a second front-end circuit located between the second antenna and the CPU, and connected to the second antenna, the second front-end circuit comprising: a second switch directly connected between the second antenna and a second filter, for switching between transmitting and receiving functions of the second front-end circuit; a second power amplifier directly connected between said second filter and a second transceiver module, for amplifying signals from the CPU; said second filter directly connected between the second switch and the second power amplifier, for filtering signals from the second power amplifier; and at least one third filter directly connected between the second switch and said second transceiver module, for filtering signals from the second switch; wherein the first signals comprise IEEE 802.11b/g frequency band signals, and the second signals comprise global system for mobile communication (GSM) frequency band signals.