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Digital predistortion of radio frequency power amplifiers using Kautz-Volterra model

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2 Author(s)
Ronnow, D. ; Dept. of Electron., Univ. of Gavle, Sweden ; Isaksson, M.

A digital predistortion algorithm for radio frequency power amplifiers based on orthonormal basis functions is presented. It has the same general properties as a Volterra model, but fewer parameters. Experimentally, using a 3.84 MHz wide signal at 2.14 GHz, the adjacent channel power was suppressed 12 to 15 dB, which was 5 to 7 dB more than a polynomial predistorter.

Published in:

Electronics Letters  (Volume:42 ,  Issue: 13 )