Research and Implement of Dual RF Bluetooth Modules Based on 2.4GHz/900MHz ISM Band
A research and implement method on Bluetooth module is purposed with 2.4GHz/900MHz dual RF,which put forward a new thought for solving the more serious problem of co-interference on short-range wireless communications.On the base of unchanged Bluetooth baseband protocol,900MHz RF module is also added so that the Bluetooth device can work on either 2.4GHz or 900MHz ISM band.Simulation analysis and numerical experiment show that for the Bluetooth system of dual RF modules,this method not only meliorates the co-interference,but also improves the distance during the communications among wireless devices.