20GHz Broadband GaAs PHEMT Distributed Preamplifier

JIAO Shi-long; CHEN Tang-sheng; JIANG You-quan; QIAN Feng; LI Fu-xiao; SHAO Kai; YE Yu-tang

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20GHz Broadband GaAs PHEMT Distributed Preamplifier

更新时间：2025-07-16

- 20GHz Broadband GaAs PHEMT Distributed Preamplifier
- Acta Electronica Sinica Vol. 35, Issue 5, Pages: 955-958(2007)
- 作者机构：
  
  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
  4. 电子科技大学光电信息学院四川成都,610054
  5. 单片集成电路与模块国家级重点实验室江苏南京,210016
  6. 南京电子器件研究所江苏南京,210016
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN722.3
- Published：2007
- 稿件说明：
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JIAO Shi-long, CHEN Tang-sheng, JIANG You-quan, et al. 20GHz Broadband GaAs PHEMT Distributed Preamplifier[J]. Acta Electronica Sinica, 2007, 35(5): 955-958.
DOI：

JIAO Shi-long, CHEN Tang-sheng, JIANG You-quan, et al. 20GHz Broadband GaAs PHEMT Distributed Preamplifier[J]. Acta Electronica Sinica, 2007, 35(5): 955-958. DOI：

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.

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