Dual mode GSM and WLAN mobile communication device

摘要

A mobile communication device (1000) includes a CPU (1300), a first antenna (1110), a first front-end circuit (1120), a second antenna (1210), and a second front-end circuit (1220). The first antenna transmits and receives first signals. The first front-end circuit, located between the first antenna and the CPU, includes a first switch (1122), a first power amplifier (1124), and a first filter. The second antenna transmits and receives second signals. The second front-end circuit, located between the second antenna and the CPU, includes a second switch (1221), a second power amplifier (1223), a second filter (1222), and at least one third filter (1224). The second switch is connected to the second antenna. The second power amplifier amplifies signals from the CPU. The second filter is connected to the second switch and the second power amplifier. The third filter is connected to the second switch.