Title :
RF amplifier with automatic impedance matching system
Author :
De Medeiros, Yan ; De Lima, Robson Nunes ; De Sousa, Fernando Rangel
Author_Institution :
Nat. I. Apprenticeship Service, Senai-CIMATEC, Salvador, Brazil
Abstract :
A topology of a RF amplifier (1.8 GHz) with an automatic impedance matching system is presented. This RF amplifier, under impedance load mismatch, is capable of reducing the variation of its output power. Simulation results show that, with a load mismatch of up VSWR 5.7:1, the amplifier output power varies between 12.3 and 21 dBm. Incorporating an automatic impedance matching system to the amplifier, a range of output power between 15 and 18.8 dBm is obtained.
Keywords :
impedance matching; network topology; power amplifiers; radiofrequency amplifiers; RF amplifier; automatic impedance matching system; frequency 1.8 GHz; impedance load mismatch; output power; power amplifier design; topology; Impedance; Impedance matching; Power amplifiers; Power generation; Radio frequency; Reflection; Switches; RF amplifier; impedance mathing; reflectometry; tunable network;
Conference_Titel :
Circuits and Systems (LASCAS), 2011 IEEE Second Latin American Symposium on
Conference_Location :
Bogata
Print_ISBN :
978-1-4244-9484-2
DOI :
10.1109/LASCAS.2011.5750305
