THz Near Field Focusing using Cassegranian Configuration for EM Side-channel Detection

被引：0

作者：

Juyal, Prateek ^{[1
]}

Adibelli, Sinan ^{[1
]}

Zajic, Alenka ^{[1
]}

机构：

[1] Georgia Inst Technol, Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

2018 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING | 2018年

基金：

美国国家科学基金会;

关键词：

Near Field; THz propagation; EM side-channels; ANTENNAS;

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：

This paper presents near field focusing at THz frequencies using cassegranian antenna configuration used for the electromagnetic side-channel detection. The antenna is designed to produce the focused beam 30cm away from the aperture. The focusing is done in the near field region by moving the subreflector from the focal point along the axis. It is observed in the simulations and measurements that the subreflector position has to shift approximately 11 wavelengths along the axis to create the focus at the required location. The 3dB focus width of the antenna is similar to 4mm. Finally, simulation results of near field gain are compared with measurements and good agreement is observed.

引用

页码：1415 / 1416

页数：2

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