Low noise amplifier receivers for millimeter wave atmospheric remote sensing
Low noise amplifier receivers for millimeter wave atmospheric remote sensing
复制标题
用于毫米波大气遥感的低噪声放大器接收器
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
C. Parashare
中科院分区：
文献类型：
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作者：
P. Kangaslahti;B. Lim;T. Gaier;A. Tanner;M. Varonen;L. Samoska;Shannon T. Brown;B. Lambrigtsen;S. Reising;Jordan M. Tanabe;O. Montes;D. Dawson;C. Parashare
目前，我们的MMIC低噪声放大器（LNA）在室温下可实现183 GHz时3.4 dB的噪声系数和90 GHz时2.1 dB的噪声系数。这些放大器和我们使用它们制造的接收器使我们能够从全球鹰无人机上进行高精度的机载测量活动，开发毫米波内部校准辐射计用于高度计雷达路径延迟校正，并为地球同步干涉测深仪建造大型毫米波接收器阵列原型。我们使用开发的毫米波接收机测量大气中的温度和湿度廓线，以及在飓风，以及海洋地形测高的路径延迟误差的特征。
We currently achieve 3.4 dB noise figure at 183GHz and 2.1 dB noise figure at 90 GHz with our MMIC low noise amplifiers (LNAs) in room temperature. These amplifiers and the receivers we have built using them made it possible to conduct highly accurate airborne measurement campaigns from the Global Hawk unmanned aerial vehicle, develop millimeter wave internally calibrated radiometers for altimeter radar path delay correction, and build prototypes of large arrays of millimeter receivers for a geostationary interferometric sounder. We use the developed millimeter wave receivers to measure temperature and humidity profiles in the atmosphere and in hurricanes as well as to characterize the path delay error in ocean topography altimetry.