Miniaturized UWB Antenna Design for Baggage Scanning Systems using Microwave Imaging

2022 IEEE Silchar Subsection Conference (SILCON) Pub Date : 2022-11-04 DOI:10.1109/SILCON55242.2022.10028913

Partha Pratim Shome, Swrjima Boro, T. Khan

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Abstract

This paper introduces the design and analysis of a low-profile ultra-wideband (UWB) antenna with efficient performance characteristics for baggage scanning systems. A printed monopole antenna with a unique radiator shape is conceptualized from a usual rectangular radiator by smoothening the vertices and rotating it to 7 degrees to make it tilted. Further, a C-shaped partial rectangular ground plane is constructed in order to excite multiple resonance frequencies for increasing the impedance bandwidth of the antenna. The proposed antenna provides a wide operating bandwidth from 3.6-12 GHz which falls under the UWB band. The antenna geometry is developed on an FR4 substrate of thickness 0.8 mm and occupies a highly miniaturized surface of 11 × 18 mm2. Besides, perceived antenna also exhibits stable radiation characteristic with acceptable gain (~2.5-5 dBi) and radiation efficiency (~85 %). A baggage-scanning case study has also been replicated in the software environment to assess the scanning ability of the proposed UWB antenna. Performance analysis reveals that the designed antenna can be effectively used for security screenings in airports and public transport systems.

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微波成像行李扫描系统小型化超宽带天线设计

本文介绍了一种用于行李扫描系统的低轮廓超宽带(UWB)天线的设计与分析。一种具有独特辐射体形状的印刷单极天线是在通常的矩形辐射体的基础上，通过平滑顶点并旋转7度使其倾斜而概念化的。此外，为了激发多个谐振频率以增加天线的阻抗带宽，构造了c形部分矩形接地面。所提出的天线提供3.6-12 GHz的宽工作带宽，属于UWB频段。天线的几何结构是在厚度为0.8 mm的FR4基板上开发的，占据了一个高度小型化的11 × 18 mm2的表面。此外，感知天线还具有稳定的辐射特性，具有可接受的增益(~2.5 ~ 5 dBi)和辐射效率(~ 85%)。在软件环境中还复制了一个行李扫描案例研究，以评估所提议的超宽带天线的扫描能力。性能分析表明，设计的天线可以有效地用于机场和公共交通系统的安全检查。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 IEEE Silchar Subsection Conference (SILCON)

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