Abstract
Recent research has shown that a single broadband, highly linear amplifier can provide an alternative to high-level combining of multiple amplifiers. The multi-carrier amplifier allows much more flexible frequency planning than a cavity combiner, and much greater power efficiency than a hybrid combiner. However, since the multi-carrier amplifier carries a complex signal, which is the sum of all the individual modulated carriers, its peak power rating must be carefully considered. For example, the peak rating of a 16-channel system may be as high as sixteen times the average power (i.e. 256 times the power in each carrier). A statistical analysis of the peak power of a multi-carrier signal, using modulated carriers, is presented, which shows that the amplifier power rating may be significantly reduced for a large number of channels, resulting in a decrease in the hardware and operating costs of multi-carrier transmitters.
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© 1994 Springer-Verlag Berlin Heidelberg
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Bennett, D.W., Kenington, P.B., Wilkinson, R.J. (1994). The effect of modulation on the power rating of multi-channel linear amplifiers. In: Günther, C.G. (eds) Mobile Communications Advanced Systems and Components. IZS 1994. Lecture Notes in Computer Science, vol 783. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-57856-0_30
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DOI: https://doi.org/10.1007/3-540-57856-0_30
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