Title :
Study of memory effects in HPA for mobile communication system
Author :
Wang, Jun-ming ; He, Jia-ming ; Zeng, Xing-Bin ; Yu, Xiao-Jun ; Zheng, Qing-hui
Author_Institution :
Commun. Technol. Inst., Ningbo Univ., China
Abstract :
This paper puts forwards an amendatory means of HPA memory effects in future mobile communication system with memory compensator and optimize circuit. Taking CDMA2000 HPA for example, observe the memory effects of HPA, than improve the performance such as spectrum re-growth with simulation experiment. The result indicates that this means can weaken the HPAs´ memory effects caused by electricity and thermal.
Keywords :
code division multiple access; mobile communication; nonlinear network analysis; power amplifiers; CDMA2000 HPA circuit; HPA memory effects; circuit optimization; memory compensator; mobile communication system; Broadband amplifiers; Communications technology; Frequency; Impedance; Mobile communication; OFDM; Power amplifiers; Pulse amplifiers; Temperature; Thermal resistance;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606488
