Supply modulator including switched-mode power supplier and transmitting device including the same

摘要: A transmitting device including: a modem configured to generate baseband signal and an envelope data corresponding the signal; supply modulator including first switched-mode power supplier second supplier, provide modulated voltage output node based on data; amplifier amplify carrier wave by using voltages, being associated with signal, wherein includes: pulse input receive generated in association plurality of stages sequentially connected between node, adjust filtering certain frequency band includes at least one variable impedance.