UWB WIRELESS TERMINAL SUPPLIED POWER THROUGH A RADIO FREQENCY SIGNAL AND POWER SUPPLY METHOD THEREOF

摘要

A UWB(Ultra Wide Band) wireless terminal for receiving power by an RF signal and a power supply method are provided to use a certain frequency band of wide band of a UWB for an RF signal and the other remaining band of the wide band of the UWB as a frequency band for data communication. A UWB modem, which includes UWB transmitting/receiving RF units(100a,100b), UWB transmitting/receiving baseband units(200a,200b) and UWB MACs(300), establishes a UWB communication channel with a host terminal or a slave terminal. A battery(500) stores DC power. A power inducing unit(3000) induces an RF signal including power by using power itself to directly drive a UWB terminal or charge the battery(500). A frequency band of a UWB is divided into a power induction frequency band for receiving power through an RF signal and a communication frequency band for RF data communication. The UWB modem establishes the UWB communication channel with the host terminal or the slave terminal through the communication frequency band. The power inducing unit(3000) receives the RF signal through the power induction frequency band.