Title | Digital baseband predistortion of wideband power amplifiers with improved memory effects |
---|
Authors | Bondar, D. and Budimir, D. |
---|
Type | Conference paper |
---|
Abstract | A new digital baseband predistortion of wideband power amplifiers with improved memory effects is presented and investigated. Distortion compensation is increased by implementing proposed iterative digital baseband injection technique. Frequency-domain equalization in baseband is developed to minimize memory effects. The non-linear and memory parts of the proposed linearizer are implemented in baseband without additional feedback loop. The spectral regrowth improvement of 20 dB for a 5-MHz 16-QAM signal and a 10 dB reduction of 8 MHz offset adjacent channel power ratio (ACPR) are achieved. |
---|
Keywords | Digital baseband predistortion, iterative injection, memory effects, equalization, linearization |
---|
Year | 2009 |
---|
Conference | IEEE Radio and Wireless Symposium 2009 (RWS'2009) |
---|
Publication dates |
---|
Published | 2009 |
---|