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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >A G-band cryogenic MMIC heterodyne receiver module for astronomical applications
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A G-band cryogenic MMIC heterodyne receiver module for astronomical applications

机译:适用于天文应用的G波段低温MMIC外差接收器模块

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摘要

We report cryogenic noise temperature and gain measurements of a prototype heterodyne receiver module designed to operate in the atmospheric window centered on 150 GHz. The module utilizes monolithic microwave integrated circuit (MMIC) InP high electron mobility transistor (HEMT) amplifiers, a second harmonic mixer, and bandpass filters. Swept local oscillator (LO) measurements show an average gain of 22 dB and an average noise temperature of 87 K over a 40 GHz band from 140 to 180 GHz when the module is cooled to 22 K. A spot noise temperature of 58 K was measured at 166 GHz and is a record for cryogenic noise from HEMT amplifiers at this frequency. Intermediate frequency (IF) sweep measurements show a 20 GHz IF band with less than 94 K receiver noise temperature for a fixed LO of 83 GHz. The compact housing features a split-block design that facilitates quick assembly and a condensed arrangement of the MMIC components and bias circuitry. DC feedthroughs and nano-miniature connectors also contribute to the compact design, so that the dimensions of the moduleare approximately 2.5 cm per side.
机译:我们报告了设计用于在以150 GHz为中心的大气窗口中运行的原型外差接收机模块的低温噪声温度和增益测量。该模块利用单片微波集成电路(MMIC)InP高电子迁移率晶体管(HEMT)放大器,二次谐波混频器和带通滤波器。扫频本地振荡器(LO)测量显示,当模块冷却至22 K时,在140 GHz至180 GHz的40 GHz频带上,平均增益为22 dB,平均噪声温度为87K。测得的点噪声温度为58 K频率为166 GHz,并且记录了HEMT放大器在该频率下产生的低温噪声。中频(IF)扫描测量显示,对于83 GHz的固定LO,20 GHz IF频段的接收器噪声温度低于94K。紧凑的外壳采用分体式设计,便于MMIC组件和偏置电路的快速组装和紧凑布置。直流馈通和纳米微型连接器也有助于紧凑的设计,因此模块的尺寸约为每边2.5厘米。

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  • 作者单位

    Department of Physics, Stanford University, Stanford, CA 94305, USA,Kavli Institute for Particle Astrophysics and Cosmology, Stanford, CA 94309, USA;

    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA;

    Department of Physics, Stanford University, Stanford, CA 94305, USA,Kavli Institute for Particle Astrophysics and Cosmology, Stanford, CA 94309, USA;

    Department of Physics, Stanford University, Stanford, CA 94305, USA,Kavli Institute for Particle Astrophysics and Cosmology, Stanford, CA 94309, USA;

    Department of Physics, Stanford University, Stanford, CA 94305, USA,Kavli Institute for Particle Astrophysics and Cosmology, Stanford, CA 94309, USA;

    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA;

    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA;

    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA;

    SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA;

    SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    multi-chip modules; low noise amplifier (LNA); low noise receiver; MMIC; HEMT;

    机译:多芯片模块;低噪声放大器(LNA);低噪声接收器;MMIC;HEMT;

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