Title :
Efficient Transmitter Self-Calibration and Amplifier Linearization Techniques
Author :
Huang, Xinping ; Caron, Mario
Author_Institution :
Commun. Res. Centre, Ottawa, Ont.
Abstract :
This paper shows how RF circuit imperfections such as imbalances in the quadrature vector modulator and nonlinearities in the power amplifier can be effectively mitigated digitally at baseband. Two patented techniques, one for vector modulator calibration, and the other for power amplifier linearization, are described. Simulation and experimental results are included to demonstrate the performance improvement.
Keywords :
calibration; linearisation techniques; modulators; power amplifiers; amplifier linearization techniques; power amplifier linearization; quadrature vector modulator; transmitter self-calibration; vector modulator calibration; Calibration; Circuits; Linearization techniques; Low pass filters; Power amplifiers; Pulse amplifiers; Pulse modulation; Radio frequency; Radiofrequency amplifiers; Transmitters;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378386
