Title :
Three-Dimensional digital predistorter for concurrent tri-band power amplifier linearization
Author :
Younes, M. ; Kwan, Andrew ; Rawat, Meenakshi ; Ghannouchi, Fadhel M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada
Abstract :
This paper reports a novel digital predistortion (DPD) scheme for concurrent tri-band power amplifier (PA). The proposed three-dimensional tri-band DPD is based on the analysis of crosstalk between the fundamental frequencies, their harmonics and intermodulation products due to the nonlinearity exhibited by the tri-band PA. The DPD performance is validated using a broadband PA driven concurrently with LTE, WIMAX, and WCDMA signals centered at 2.14 GHz, 2.425 GHz, and 2.655 GHz, respectively.
Keywords :
harmonic distortion; intermodulation distortion; microwave power amplifiers; DPD performance; LTE; WCDMA; WIMAX; concurrent tri-band power amplifier linearization; crosstalk; frequency 2.14 GHz; frequency 2.425 GHz; frequency 2.655 GHz; harmonics; intermodulation products; novel digital predistortion scheme; three-dimensional digital predistorter; tri-band PA; Frequency measurement; Frequency modulation; Multiaccess communication; Predistortion; WiMAX; digital predistortion; memory effects; memory polynomial; power amplifier; tri-band;
Conference_Titel :
Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4673-6177-4
DOI :
10.1109/MWSYM.2013.6697635
