DocumentCode
1054792
Title
Broadband DSP based feedforward amplifier lineariser
Author
Randall, R.G. ; McRory, J.G. ; Johnston, R.H.
Author_Institution
TRLabs, Calgary, Alta., Canada
Volume
38
Issue
23
fYear
2002
fDate
11/7/2002 12:00:00 AM
Firstpage
1470
Lastpage
1471
Abstract
The performance of the feedforward linearisation technique begins to degrade for signals with very wide bandwidths due to the non-ideal amplitude and phase frequency response of the components. By implementing part of the lineariser in a digital signal processor (DSP), a digital equaliser can be used to compensate for the nonideal behaviour and improve the cancellation in the first loop.
Keywords
digital signal processing chips; equalisers; feedforward; frequency response; linearisation techniques; radiofrequency amplifiers; wideband amplifiers; bandwidth; broadband DSP based feedforward amplifier lineariser; digital equaliser; digital signal processor; hybrid lineariser signal cancellation loop performance; nonideal amplitude response; nonideal behaviour compensation; nonideal phase frequency response; wireless base station amplifiers;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.10491el.-20020971
Filename
1068048
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