Enhanced Hidden Object Detection with a Circularly Polarized W-band Imaging Radar System

被引：0
|
作者：
Geschke, Riana H. [1 ]
Arpe, Oliver [2 ]
Brauns, Ralf [2 ]
Krebs, Christian [2 ]
机构：
[1] Univ Cape Town, Fac Engn & Built Environm, Dept Elect Engn, Rondebosch, South Africa
[2] Fraunhofer FHR Integrated Circuits & Sensor Syst, Wachtberg, Germany
来源：
2018 15TH EUROPEAN RADAR CONFERENCE (EURAD) | 2018年
基金：
新加坡国家研究基金会;
关键词：
imaging radar; W-band radar; millimetre wave polarizer;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present an experimental W-band imaging radar demonstrator to transmit and receive circular polarization from 88 to 110 GHz. It illuminates test objects with a circularly polarized lens antenna with 30 dBi gain and 3.5 degree beamwidth. For the detection of hidden objects, specific practical aspects of the polarizer design and measurement need to be addressed, since polarizer performance is degraded by reflections between the input and output ports. A measurement scheme for characterization of a polariser by measurement is presented. The results presented here on imaging in the W-band system demonstrate a clear benefit of circular polarization over a linearly polarized system, despite the increased system complexity.
引用
收藏
页码：237 / 240
页数：4
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