Patent ID: 6175748
Filing Date: 2001-01-16
Classification: H04B

Abstract:
A booster for amplifying a signal from a mobile cellular telephone transceiver, comprising:an interface for receiving the signal from the transceiver;a level determination device for determining a power level of the signal, the level determination device being operative to receive an input based on the signal and produce an output corresponding to the power level determined for the signal;an operational amplifier receiving a first input from an output RF signal and a second input from the output of the level determination device, the second input serving as a reference input, the operational amplifier producing an output based on a difference between the first input and the second input;a variable attenuator receiving an input from the output of the operational amplifier and producing an output based on the input; andan RF power amplifier for producing an amplified signal based on the signal from the mobile transceiver, the RF power amplifier receiving as an input the output of the variable attenuator and producing as an output the amplified signal.