d波段辐射计前端的研究与应用

IF 0.6 4区 物理与天体物理 Q4 OPTICS 红外与毫米波学报 Pub Date : 2020-01-01 DOI:10.11972/J.ISSN.1001-9014.2020.06.007
Liu Jun, Hegong Wei, Qiao Haidong, Yu Weihua, Lyu Xin
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引用次数: 0

摘要

一种d波段(110~170 GHz)直接探测辐射计前端,由检测器模块、低噪声放大模块和标准增益喇叭天线组成。基于零偏肖特基势垒二极管HSCH-9161设计制作了d波段检波器,测量结果表明,在110~140 GHz范围内电压灵敏度大于400 mV/mW,在d波段电压灵敏度大于120 mV/mW,最大值约为1 600 mV/mW@110 GHz。d波段LNA模块采用自行设计的MMIC封装,模块测量显示峰值增益为10。8 dB@139 GHz,增益高于7。在137ghz ~ 144ghz范围内,实测的输入回波损耗(S11)和输出回波损耗(S22)均优于- 5db和- 8db。工作频率分别为5db。最后,基于该前端进行了成像实验。
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The study and application of D-band radiometer front-end
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 1 600 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.
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CiteScore
1.20
自引率
14.30%
发文量
4258
审稿时长
2.9 months
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