Publisher： Cambridge University Press
E-ISSN： 1759-0795|5|2|149-162
ISSN： 1759-0787
Source： International Journal of Microwave and Wireless Technologies, Vol.5, Iss.2, 2013-03, pp. : 149-162
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
In this paper, a complete design procedure, together with robust system validation approaches, is presented for implementing a high-performance re-configurable digital predistortion (DPD) test platform for compensating for nonlinear distortion and memory effects induced by radio frequency (RF) power amplifiers (PAs) in the transmitters of modern wireless communication systems. This hardware and software co-operated test system not only enables effective validation for DPD algorithm development, but also provides a high-performance and reliable hardware-based linearization test platform. The experimental test was applied on a medium power Doherty amplifier, which was designed for 3 G/4 G wireless communication base stations. By applying our DPD algorithms on the proposed platform, more than 30 dB improvements in adjacent channel power ratio can be achieved for Universal Mobile Telecommunications System and long-term evolution signal excitations.
Related content
International Journal of Microwave and Wireless Technologies, Vol. 5, Iss. 2, 2013-04 ,pp. :
Access to resources
Recommend
International Journal of Microwave and Wireless Technologies, Vol. 5, Iss. 2, 2013-04 ,pp. :