Model-Based VF Technique for Parasitic Reflections Reduction of Frequency-Domain Chipless RFID Systems

IF 2.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Microwave and Wireless Components Letters Pub Date : 2022-12-01 DOI:10.1109/LMWC.2022.3194322

Javad Aliasgari, N. Karmakar

引用次数: 1

Abstract

In a frequency-domain chipless RFID system, the backscattered signal from a tag is directly obtained in the frequency domain over limited bandwidth. However, to reduce the parasitic reflections, it is crucial to obtain the backscattered signal in the time domain. This letter proposes a precise quasi-analytic method, known as the model-based vector fitting (VF) technique, to provide the closed-form equation of the backscattered response in the time domain. The proposed method successfully recovers a tag’s identification (ID) among parasitic reflections using a single tag measurement without requiring prior knowledge about the tag.

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基于模型的VF频域无芯片RFID系统寄生反射抑制技术

在频域无芯片RFID系统中，在有限的带宽上在频域中直接获得来自标签的反向散射信号。然而，为了减少寄生反射，在时域中获得反向散射信号是至关重要的。这封信提出了一种精确的准解析方法，称为基于模型的矢量拟合（VF）技术，以提供时域中反向散射响应的闭合形式方程。所提出的方法使用单个标签测量在寄生反射中成功地恢复了标签的标识（ID），而不需要关于标签的先验知识。

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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来源期刊

IEEE Microwave and Wireless Components Letters 工程技术-工程：电子与电气

自引率

13.30%

发文量

376

审稿时长

3.0 months

期刊介绍： The IEEE Microwave and Wireless Components Letters (MWCL) publishes four-page papers (3 pages of text + up to 1 page of references) that focus on microwave theory, techniques and applications as they relate to components, devices, circuits, biological effects, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, medical and industrial activities. Microwave theory and techniques relates to electromagnetic waves in the frequency range of a few MHz and a THz; other spectral regions and wave types are included within the scope of the MWCL whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design.