红外与毫米波学报2020，Vol.39Issue(6)：704-708,5.DOI:10.11972/j.issn.1001-9014.2020.06.007
D波段辐射计前端的设计与应用
The study and application of D-band radiometer front-end
摘要
Abstract
A D-band(110～170 GHz)direct detection radiometer front-end which consists of detector module, low noise amplifier module and standard gain horn antenna.The D-band detector is designed and fabricated based on zero-bias Schottky barrier diode HSCH-9161 and the measurement shows that the voltage sensitivity is larger than 400 mV/mW between 110～140 GHz,larger than 120 mV/mW in D-band and the maximal value reaches about 1600 mV/mW@110 GHz.The D-band LNA module is packaged with self-designed MMIC and the module measurement shows the peak gain is 10.8 dB@139 GHz,the gain higher than 7.8 dB from 137 GHz to 144 GHz, the measured input return loss(S11)and output return loss(S22)are better than-5 dB and 8.5 dB in operating frequencies,respectively.Finally,the imaging experiments based on this front-end are carried out.关键词
D波段/辐射计前端/低噪声放大器/检波器Key words
D-band/radiometer front-end/low noise amplifier(LNA)/detector分类
信息技术与安全科学引用本文复制引用
刘军,何伟,乔海东,于伟华,吕昕..D波段辐射计前端的设计与应用[J].红外与毫米波学报,2020,39(6):704-708,5.基金项目
Supported by National Natural Science Foundation of China(61771057) （61771057）
