Enhancement on the robustness of a quad-band power amplifier module for GSM/GPRS handset

被引：0
|
作者：
Wu, Janne-Wha [1 ]
Hu, Cheng-Chi [1 ]
Shih, Ying-Chu [1 ]
Tang, Ching-Wen [1 ]
Huang, Chung-Er [1 ]
Shen, Che-Wei [1 ]
机构：
[1] Natl Chung Cheng Univ, Chiayi 62145, Taiwan
来源：
2005 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS, VOLS 1-5 | 2005年
关键词：
GSM; GPRS; power amplifier module; power control; robustness; mismatch susceptibility; HBT;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Device Ruggedness is the major concern about the adoption of power amplifier module in the mobile phone industry. A resistive network was employed to stabilize the sub-harmonic ((f)/(2)) loop oscillation for the large periphery. device, especially on the output stage. Not only the spurious emission being minimized, but also the robustness of power amplifier is strengthened as operating under severe mismatch condition (VSWR 10: 1). Such power chips were integrated with a logarithmic power detecting controller and functioned as a linearly closed-loop power controlled GSM/GPRS power amplifier module. It had successfully demonstrated a highly mismatch susceptibility for all quad-band operations.
引用
收藏
页码：3416 / 3419
页数：4
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