A Novel Broadband Power Amplifier Architecture for High Efficiency and High Linearity Applications

被引：0
作者：
Alidio, Raul [1 ]
Lee, Woo Yong [1 ]
Gummalla, Ajay [1 ]
Achour, Maha [1 ]
机构：
[1] Rayspan Corp, San Diego, CA 92130 USA
来源：
2010 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST (MTT) | 2010年
关键词：
envelope detection; bandwidth; orthogonal frequency-division multiplexing (OFDM); power added efficiency; MMIC; power amplifier architecture; power amplifier (PA);
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：
A novel and simple architecture for improving efficiency, bandwidth and linearity at backed-off RF power is presented. It is accomplished by a distributed amplifier with proper turn on and off of the transistor devices via an RF detector. Neither RF power combiner/splitter, DSP nor envelope amplifier is utilized. A MMIC prototype was designed and fabricated using a GaAs HBT process to verify this efficient, linear and broadband PA architecture and it measured 3% EVM and 24-25% PAE at 19.6dBm from 2.3GHz to 2.7GHz using a 54Mbps 64QAM OFDM modulation signal.
引用
收藏
页码：1064 / 1067
页数：4
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