Abstract
We suggest a method for determining the efficiency of the power amplifier of an OFDM broadcast system. We present how far the efficiency of conventional power amplifiers can be increased by applying envelope following. The dependency of the efficiency on the probability of clipping is derived. In this context all three possibilities of operating point adjustment are investigated. Finally, we show that by adjusting only the operating point voltage of the power amplifier the efficiency of OFDM broadcast systems can be doubled.
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© 2010 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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Wolf, R., Ellinger, F., Eickhoff, R. (2010). On the Maximum Efficiency of Power Amplifiers in OFDM Broadcast Systems with Envelope Following. In: Chatzimisios, P., Verikoukis, C., Santamaría, I., Laddomada, M., Hoffmann, O. (eds) Mobile Lightweight Wireless Systems. Mobilight 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 45. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16644-0_15
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DOI: https://doi.org/10.1007/978-3-642-16644-0_15
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-16643-3
Online ISBN: 978-3-642-16644-0
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