A significant part of the cost of a base station in the cellular mobile radio system is the power amplifier. Thus it is desirable to maximise usage of a power amplifier and in particular to gain the best power output from the amplifier or to improve its efficiency. Such power amplifiers, however, must...http://www.google.fr/patents/US6703897?utm_source=gb-gplus-shareBrevet US6703897 - Methods of optimising power amplifier efficiency and closed-loop power amplifier controllers
Methods of optimising power amplifier efficiency and closed-loop power ...