无源谐波雷达标签中偏心馈电偶极子天线的评价

P. Lawson, J. Godfrey, A. Lavrenko
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引用次数: 2

摘要

谐波标签是无源无线电应答器,当被射频信号照射时产生谐波回波。它们用于减少杂波对难以区分的目标的影响。一个经典的谐波标签由一个偶极天线、一个肖特基二极管和一个电感环组成。在这项工作中,我们评估了谐波标签中偏心馈电偶极子的性能,并表明随着功率转换效率的提高,它产生的定向辐射模式在某些应用中可能是有害的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluation of an Off-Centre Fed Dipole Antenna in Passive Harmonic Radar Tags
Harmonic tags are passive radio transponders that create a harmonic return when illuminated with an RF signal. They are used to reduce the effect of clutter for otherwise indistinguishable targets. A classic harmonic tag consists of a dipole antenna, a Schottky diode and an inductive loop. In this work, we evaluate the performance of an off-centre fed dipole in harmonic tags and show that along with improved power conversion efficiency it yields a directional radiation pattern which could be detrimental in certain applications.
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