POWER COUPLING AMPLIFIER CAPABLE OF REDUCING THE SIZE OF A CIRCUIT THROUGH OPTIMUM POWER COUPLING

摘要

PURPOSE: A power coupling amplifier is provided to reduce the size of a circuit by replacing a transmission line with a CRLH(Composite Right and Left Handed) transmission line for power coupling between an input and output matching and an amplifier.;CONSTITUTION: First susceptance elements(20-24) are connected to N amplifiers(10-14) which are not matched and an input terminal of each amplifier. A plurality of first matched circuits(30-33) is used for a conjugate matching between the inputs of each amplifier. An input matching unit(60) matches a final input and a source(1). Second susceptance elements(40-44) are connected in parallel to the output terminal of each amplifier. A plurality of second matching circuits(50-53) are used for a conjugate matching between outputs of each amplifier. An output matching unit(70) is used for matching between a final output of a power coupling amplifier and a load resistor(2).;COPYRIGHT KIPO 2011