The study and application of D-band radiometer front-end

doi:10.11972/j.issn.1001-9014.2020.06.007

Home > Archive>Volume 39, Issue 6, 2020 >704-708. DOI:10.11972/j.issn.1001-9014.2020.06.007

The study and application of D-band radiometer front-end
DOI:
                        10.11972/j.issn.1001-9014.2020.06.007
                    
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                        LIU JunLIU Jun
Beijing Key Laboratory of Millimeter Wave and Terahertz Technology， Beijing Institute of Technology， Beijing 100081， China
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HE WeiHE Wei
Beijing Key Laboratory of Millimeter Wave and Terahertz Technology， Beijing Institute of Technology， Beijing 100081， China
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QIAO Hai-DongQIAO Hai-Dong
Beijing Key Laboratory of Millimeter Wave and Terahertz Technology， Beijing Institute of Technology， Beijing 100081， China
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YU Wei-HuaYU Wei-Hua
Beijing Key Laboratory of Millimeter Wave and Terahertz Technology， Beijing Institute of Technology， Beijing 100081， China
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LV XinLV Xin
Beijing Key Laboratory of Millimeter Wave and Terahertz Technology， Beijing Institute of Technology， Beijing 100081， China
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Affiliation:Beijing Key Laboratory of Millimeter Wave and Terahertz Technology， Beijing Institute of Technology， Beijing 100081， China
Clc Number:TN454
Fund Project:Supported by National Natural Science Foundation of China (61771057)

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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 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.

Key words:D-band;radiometer front-end;low noise amplifier （LNA）;detector

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LIU Jun, HE Wei, QIAO Hai-Dong, YU Wei-Hua, LV Xin. The study and application of D-band radiometer front-end[J]. Journal of Infrared and Millimeter Waves,2020,39(6):704~708

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Received:March 01,2020
Revised:November 11,2020
Adopted:March 19,2020
Online: November 10,2020
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