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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Design and Comparative Analysis of Ultra-wideband and High Directive Antennas for THz Applications
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Design and Comparative Analysis of Ultra-wideband and High Directive Antennas for THz Applications

机译：用于THz应用的超宽带和高指示天线的设计与比较分析

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摘要

This work presents a comprehensive detailed comparative study of the three ultra-wideband and high directive antennas for the THz imaging, spectroscopy, and communication applications. Three different types of photoconductive antennas (log-spiral, Vivaldi, and bowtie antennas) are designed and simulated in the frequency range of 1 to 6 THz in the CST microwave studio (MWS). The enhanced directivity of the designed PCAs is achieved with the integration of the hemispherical silicon-based lens with the PCA gold electrode and quartz substrate of the proposed antennas. The performance of the designed PCAs is compared in terms of impedance and axial ratio bandwidths, directivity, and radiation efficiency of the proposed antennas. The reported log spiral, Vivaldi PCAs with added silicon lens exhibit the -10 dB impedance bandwidth of 6 THz, 3dB AR bandwidth of 5 THz, 6 THz, and 6 THz and peak total radiation efficiencies of 45%, 65%, and 95% respectively.
机译：这项工作介绍了THz成像，光谱学和通信应用的三种超宽带和高指示天线的综合详细研究。三种不同类型的光电导天线（Log-Spiral，Vivaldi和Bowtie Antennas）设计和模拟CST微波工作室（MWS）的频率范围为1至6至6至6。通过将半球形硅基透镜与所提出的天线的PCA金电极和石英衬底的整合，实现了设计的PCA的增强的方向性。在抗冲击和轴向比带宽，方向性和所提出的天线的辐射效率方面比较设计的PCA的性能。报道的日志螺旋，Vivaldi PCA具有添加的硅镜片显示-10 dB阻抗带宽6至6至6至6星，6至6至6至6至6至6星级，峰值总辐射效率为45％，65％和95％分别。

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