Trade off analysis between power-added efficiency and linearity on HBT power amplifier
- 1 October 1995
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 20-23
- https://doi.org/10.1109/euma.1995.336909
Abstract
Different HBT operating classes have been compared in terms of output power and power-added efficiency using a simulated multiharmonic load-pull type optimization and also in term of linearty measured on hybrid modules. A fully automatic test bench has been developed in order to perform linearity measurements among which Bit Error Rate (BER) and speetrum side lobe level for a QPSK signal. The best results were obtained on the class AB hybrid amplifier with output power of 1 W, 50% PAE at 1.8 GHz.Keywords
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