Relatório de estágio integrado - Projeto de um adaptador sintonizável de impedância para aplicações de telefonia móvel.

Abstract

The requirement in the field of telecommunications for devices which allow the adaptation of impedance increased during these last years. The systems of mobile telephony have great losses of energy, in particular between the amplifier and the antenna because of the variation of its impedances of exit and among, respectively. The objective of this work is to study topologies of circuit of adaptation and to project a reconcilable device of adaptation of impedance possible to be manufactured by using technology CMOS AMS 0,35 µm for integrated circuit.