Title :
Inverse Class-F Power Amplifier Using Composite Right/Left-Handed Transmission Lines as a Harmonic Trap
Author :
Dupuy, Alexandre ; Leong, Kevin M K H ; Staraj, Robert ; Jacquemod, Gilles ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA
Abstract :
An inverse-class-F power amplifier at 2.4GHz using a novel harmonic tuner based on a composite right/left handed (CRLH) transmission line (TL) is proposed and experimentally tested. The structure uses one series CRLH-TL and one open CRLH-TL to suppress 2nd, 3rd harmonics and to match to 50 Omega the fundamental frequency. The interesting properties of the CRLH-TLs allow a size reduction of the harmonic trap as well simplification of the design. The proposed tuner is used to design an inverse-class-F power amplifier with a maximum drain efficiency of 58%
Keywords :
UHF power amplifiers; harmonics suppression; metamaterials; transmission lines; 2.4 GHz; 50 ohm; UHF power amplifiers; composite right/left-handed transmission lines; harmonic suppression; harmonic trap; harmonic tuner; inverse class-F power amplifier; Circuits; Frequency; High power amplifiers; Impedance; Power amplifiers; Power system harmonics; Power transmission lines; Radiofrequency amplifiers; Transmission line theory; Tuners; CRLH-TL; Power amplifier; high efficiency; inverse class F; metamaterial;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281348
