Title :
Linear and Efficient Half-Sinusoidally Driven Harmonic-Control Amplifier
Author :
Ingruber, Bernhard ; Konrad, Wolfgang ; Smely, Dieter ; Mageri, Gottfried
Author_Institution :
Technische Universitiát Wien, Institut fÿr Elektrische Mess- und Schaltungstechnik, GusshausstraÃ\x9fe 25/354, A-1040 Wien, Austria. Tel. +43-1-58801-35420, Fax. +43-1-58801-35499, E-mail: bingrube@emst.tuwien.ac.at
Abstract :
We optimized a haif-sinusoidally driven harmonic-control amplifier (hHCA) for power-added efficiency (PAE) and carrier-to-intermodulation-distortion distance (C/I) at two-tone stimulus. The second harmonic input power which is necessary to drive the hHCA is generated by a resistively loaded class B amplifier. This promotes overall linearity and PAE. We show that for an hHCA the design criterion for optimum PAE and optimum C/I is the same. The realization of such an amplifier has demonstrated a PAE of 50% at a C/I of ¿41 dBc and of 58% at ¿30 dBc.
Keywords :
Driver circuits; Frequency; High power amplifiers; Linearity; Power amplifiers; Power generation; Power system harmonics; Reflection; Signal generators; Voltage;
Conference_Titel :
Microwave Conference, 1999. 29th European
Conference_Location :
Munich, Germany
DOI :
10.1109/EUMA.1999.338567
