A soft-slope output power control circuit for RF power amplifiers

被引：0
|
作者：
Scuderi, A [1 ]
Scuderi, A [1 ]
Carrara, F [1 ]
Palmisano, G [1 ]
机构：
[1] Univ Catania, Fac Ingn, DIESS, I-95125 Catania, Italy
来源：
2005 PHD RESEARCH IN MICROELECTRONICS AND ELECTRONICS, VOLS 1 AND 2, PROCEEDINGS | 2005年
关键词：
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：
This paper presents an output power control circuit for DCS power amplifiers. The proposed topology allows a power control function to be achieved by varying the power amplifier quiescent current through an external voltage. A soft control slope is attained by exploiting a temperature-compensated exponential control law for the quiescent current. A DCS power amplifier was fabricated in low-cost silicon bipolar technology. It delivers a 33.5-dBm saturated output power with 46% maximum power-added efficiency and 36-dB gain at a nominal 3.5-V supply voltage. An output power control range larger than 40 dB is achieved with a power control slope lower than 80 dB/V.
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收藏
页码：235 / 238
页数：4
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