COMPLEX ANTENNA CIRCUIT FOR MOBILE TERMINAL

摘要

A complex antenna circuit for mobile terminal is provided to improve receiving sensitivity by appropriately processing receiving signal in designing DMB, GPS, and wireless LAN antennas to one module. A DMB signal receiving processor(10) band-filters a signal received through antenna for DMB(ANT-DMB), and outputs a signal amplified to a predetermined level to a device common connection terminal(CON). A GPS signal receiving processor(20) amplifies a signal received through antenna for GPS(ANT-GPS), and outputs a band-filtered signal to the device common connection terminal. A wireless LAN receiving processor(30) outputs a signal received through antenna for wireless LAN(ANT-RAN) to the device common connection terminal. A power supply unit(40) receives a DC voltage from the device common connection terminal, and supplies a DC voltage of a predetermined level.