用于远场辐射方向图分析的CMOS相机型太赫兹紧凑天线测试范围

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Pub Date : 2020-11-08 DOI:10.1109/IRMMW-THz46771.2020.9370372

Robin Zatta, V. Jagtap, J. Grzyb, U. Pfeiffer

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引用次数: 3

摘要

为了方便地测量发射机的远场辐射方向图，提出了一种CMOS相机型太赫兹紧凑天线测试范围(CATR)。为了验证概念，我们使用太赫兹CATR测量了已知远场特性的26 dbi 0.852太赫兹标准增益喇叭天线型TX的远场辐射方向图。在几何多帧超分辨率成像的帮助下，在峰值信噪比为34.8 dB时，指向性测定精度为0.2 dB。此外，我们研究了一种远场特性未知的0.852太赫兹的太赫兹连续波(CW) photomixer TX。它发射高阶模远场辐射图，其指向性为25.4 dBi，在PSNR为31.8 dB时确定。

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CMOS Camera-Type THz Compact Antenna Test Range for Far-Field Radiation Pattern Analysis

This paper presents a CMOS camera-type THz compact antenna test range (CATR) to facilitate a convenient means to measure far-field radiation patterns of transmitters (TXs). For concept validation, we measured the far-field radiation pattern of a 26-dBi 0.852-THz standard gain horn antenna-type TX with known far-field characteristics with the THz CATR. With the help of geometrical multi-frame super-resolution imaging, the directivity determination accuracy achieved at a peak signal-to-noise ratio (PSNR) of 34.8 dB is 0.2 dB. Further, we investigated a THz continuous-wave (CW) photomixer TX with unknown far-field characteristics at 0.852 THz. It emits a higher-order mode far-field radiation pattern, and its directivity is 25.4 dBi, determined at a PSNR of 31.8 dB.

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2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

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