| 20GHz宽带GaAs PHEMT分布式前置放大器 |
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| 引用本文： | 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. |
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| 作者姓名： | 焦世龙 陈堂胜 蒋幼泉 钱峰 李拂晓 邵凯 叶玉堂 |
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| 作者单位： | 1. 电子科技大学光电信息学院,四川成都 610054;2. 单片集成电路与模块 国家级重点实验室,江苏南京 210016;3. 南京电子器件研究所,江苏南京 210016 |
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| 基金项目： | 国家自然科学基金，国家重点实验室基金，教育部科学技术研究项目 |
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| 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.
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| 关 键 词： | GaAs PHEMT 分布放大器 带宽 噪声系数 眼图 |
| 文章编号： | 0372-2112（2007）05-0955-04 |
| 收稿时间： | 2006-03-21 |
| 修稿时间： | 2006-03-212007-01-29 |
20GHz Broadband GaAs PHEMT Distributed Preamplifier |
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| 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. |
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| Authors: | JIAO Shi-long CHEN Tang-sheng JIANG You-quan QIAN Feng LI Fu-xiao SHAO Kai YE Yu-tang |
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| Affiliation: | 1. School of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu,Sichuan 610054,China;2. National Key Laboratory of Monolithic Integrated Circuits and Modules,Nanjing,Jiangsu 210016,China;3. Nanjing Electronic Devices Institute,Nanjing,Jiangsu 210016,China |
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| 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. |
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| Keywords: | GaAs PHEMT |
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