Patent ID: 6426675
Filing Date: 2002-07-30
Classification: H03G

Abstract:
A method for controlling power of a transmission amplifier, comprising the steps of:outputting a first portion of a power being emitted from a transmission amplifier via a directional coupler before the power is supplied to an antenna; further outputting a second portion of the power being emitted from the transmission amplifier via a control switching device, provided that a desired transmission power level for the transmission amplifier is less than a predetermined value, an input for said control switching device being located between the directional coupler and one of the transmission amplifier and the antenna, an output for said control switching device being located between the directional coupler and a device for controlling the power of the transmission amplifier, said further outputting step for obtaining a desired transmission power level; and setting a gain factor of the transmission amplifier by utilizing a signal that is dependant on a total output power of the transmission amplifier.