摘要
本文提出了一种1-bit数字可重构波束扫描的反射阵单元结构。在反射阵单元结构上加载变容二极管,并通过改变偏置电压的大小获得电压-反射相位曲线。数字可重构反射阵单元的相移范围要满足180°,并将其两个相差180°的两种状态设定成编码"0"和编码"1"。为了设计数字可重构反射阵,利用模糊量化的方法将每个单元的相位设定成编码"0"和编码"1"。通过控制每个反射阵单元的编码,可以实现天线主波束的自适应扫描。
In this paper, a 1-bit digital reconfigurable reflectarray antenna element is proposed for beam-scanning. One varactor diode is loading in one element to obtain the phase curve versus the bias voltage by varying the bias voltage. The phase-shift range for the digital element must be more than 180° and the two states with a difference of 180 ° in phase are set to code "0" and code "1". To design the digital reconfigurable reflectarray, the phase of every element needs to be set to "0" or "1" by fuzzy quantification method. Beam-scanning performance of the reflectarray is obtained by controlling the every element's code.
引文
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