ACPR design of high-efficiency power amplifiers for wireless handset applications

被引：0
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作者：
Geng, Hui
Hasegawa, Yasuaki
机构：
来源：
Applied Microwave and Wireless | 2002年 / 14卷 / 02期
关键词：
Cellular telephone systems - Code division multiple access - Field effect transistors - Heterojunctions - Integrated circuit layout - Intermodulation - Linearization - Multichip modules - Semiconducting gallium arsenide - Signal distortion - Telephone sets - Time division multiple access;
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学科分类号：
摘要：
The adjacent channel power ratio (ACPR) of a two-stage power amplifier was greatly improved by selecting the biasing point and the gain level of the first- and second-stage amplifiers. A 3 to 5 dB improvement result was obtained. This result was verified by experimental investigation.
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