20GHz宽带GaAs PHEMT分布式前置放大器

焦世龙, 陈堂胜, 蒋幼泉, 钱 峰, 李拂晓, 邵 凯, 叶玉堂

电子学报 ›› 2007, Vol. 35 ›› Issue (5) : 955-958.

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电子学报 ›› 2007, Vol. 35 ›› Issue (5) : 955-958.
论文

20GHz宽带GaAs PHEMT分布式前置放大器

  • 焦世龙1,2, 陈堂胜2, 蒋幼泉3, 钱 峰3, 李拂晓3, 邵 凯3, 叶玉堂1
作者信息 +

20GHz Broadband GaAs PHEMT Distributed Preamplifier

  • JIAO Shi-long1,2, CHEN Tang-sheng2, JIANG You-quan3, QIAN Feng3, LI Fu-xiao3, SHAO Kai3, YE Yu-tang1
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文章历史 +

摘要

采用0.5μm GaAs PHEMT工艺研制了一种光接收机分布式前置放大器.该放大器-3dB带宽接近20GHz,跨阻增益约46dBΩ;在50MHz~16GHz范围内,输入、输出电压驻波比(VSWR)均小于2;带内噪声系数在3.03~6.5dB之间,平均等效输入噪声电流密度约为14.6pA/ Hz ;在输入10Gb/s非归零(NRZ)伪随机二进制序列(PRBS)信号下,放大器输出眼图清晰,具有12ps的定时抖动和166mV峰峰电压.

Abstract

A distributed amplifier (DA) basing on 0.5 μ m GaAs PHEMT process has been developed.The DA has a measured -3dB bandwidth close to 20GHz,with a transimpedance gain of 46dB Ω .Both the input and output voltage standing wave ratios (VSWR) are less than 2 in the range of 50MHz~16GHz.The noise figure (NF) varies from 3.03 to 6.5dB,whilst the average equivalent input noise current density is about 14.6pA/ Hz .With a timing jitter of 12ps and eye amplitude about 166mV,the measured output eye diagram for 10Gb/s NRZ pseudorandom binary sequence (PRBS) is clear and satisfying.

关键词

GaAs PHEMT / 分布放大器 / 带宽 / 噪声系数 / 眼图

Key words

GaAs PHEMT / distributed amplifier / bandwidth / noise figure / eye diagram

引用本文

导出引用
焦世龙, 陈堂胜, 蒋幼泉, 钱 峰, 李拂晓, 邵 凯, 叶玉堂. 20GHz宽带GaAs PHEMT分布式前置放大器[J]. 电子学报, 2007, 35(5): 955-958.
JIAO Shi-long, CHEN Tang-sheng, JIANG You-quan, QIAN Feng, LI Fu-xiao, SHAO Kai, YE Yu-tang. 20GHz Broadband GaAs PHEMT Distributed Preamplifier[J]. Acta Electronica Sinica, 2007, 35(5): 955-958.
中图分类号: TN722.3   

基金

国家自然科学基金 (No.60277008); 单片集成电路与模块国家级重点实验室基金 (No.51491050105DZ0201); 教育部重点科技项目 (No.03147)
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