Title :
The RF module design for W-CDMA/GSM dual band and dual mode handset
Author :
Xiaowei Zhu ; Wei Hong ; Liu Jin ; Ling Tian ; Jianyi Zhou
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
Abstract :
In this paper, novel RF front-ends for GSM/W-CDMA dual band and dual mode mobile terminal are described. The zero IF direct modulation transmitter and duel-superheterodyne receiver have been realized in the RF module development. The power down functions of the IC chip used to switch the RF module turn on the W-CDMA or GSM mode. Finally, the testing results are shown for both the W-CDMA and GSM modes.
Keywords :
UHF circuits; cellular radio; code division multiple access; modules; telephone sets; transceivers; RF front-ends; RF module design; W-CDMA/GSM dual mode handset; dual band handset; duel-superheterodyne receiver; mobile terminals; power down functions; zero IF direct modulation transmitter; Dual band; Frequency conversion; Frequency modulation; GSM; Multiaccess communication; Phase locked loops; Radio frequency; Radio transmitters; Switches; Telephone sets;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.967356
