Jianing Zhao, Xiaowei Zhu, Jianyi Zhou, Jin Liu

Articles by Jianing Zhao, Xiaowei Zhu, Jianyi Zhou, Jin Liu

An RF Module Design for a Multi-mode Handset

This article describes a novel design of an RF module for a multi-mode handset and presents an example of an RF module for a W-CDMA/GSM/DCS tri-band and dual-mode handset. The entire module, including a direct modulation transmitter and a superheterody...

January 1, 2003

Jianing Zhao, Xiaowei Zhu, Jianyi Zhou, Jin Liu

0 Comments

The number of mobile users is predicted to reach 1.7 billion by the year 2010. More than 45 percent of them will use high data speed services. W-CDMA, proposed by IMT2000, has become the most practical and important system for the development of new wireless communications. Nevertheless, second generation...