PROCEEDINGS OF THE ITE WINTER ANNUAL CONVENTION
Online ISSN : 2424-2306
Print ISSN : 1343-4357
ISSN-L : 1343-4357
2011
Session ID : 4-10
Conference information

4-10 Memory effect compensation for 10kW-Doherty amplifier
Keiichi YAMAGUCHIYoshimasa EGASHIRAAtsushi YAMAOKAToshihiro TANGOKensei KAWABATATakaya KITAHARAHiromu ITAGAKIShigeru HIURAItsuhei SHIMIZUNorikazu KOHARAHideki OONOTakao KATO
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

To compensate for memory effect of the Doherty amplifier, Volterra-based adaptive digital pre-distorter was implemented in a multi-million gate FPGA. Experimental validation carried out using a 400W and 10kW-Doherty amplifier, driving with ISDB-T signal, showed excellent linearization capability by achieving an IM of better than -50dB.

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© 2011 The Institute of Image Information and Television Engineers
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