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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Development of an ultra-wide band and low crosspolarization reflectarray antenna using novel unit cells with wide-range linear phase
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Development of an ultra-wide band and low crosspolarization reflectarray antenna using novel unit cells with wide-range linear phase

机译：使用具有宽范围线性相位的新型单元电池的超宽带和低通偏振反射阵列天线的开发

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摘要

In this paper, a design procedure for a linearly polarized ultra-wide band(UWB) single layer reflectarray antenna (RA) is presented. The RA is comprisedof novel unit cells of annular ring patches; each ring is connected to twophase delay lines to achieve a linear and smooth phase response over a widefrequency range. In the proposed RA, the designed true phase delay providesmore than three cycles of 360°. By adjusting the length of these phase delaylines, a wide range of 1300° linear phase variation has been obtained over awide frequency band. A wide bandwidth and low cross-polarization (XP) levelswere predicted using the utilized novel unit cell element and the elegant mirroredarrangement. To validate the simulated results, a prototype of circularaperture with 22.86 cm diameter was fabricated and its radiation patterns weremeasured. The measured 3-dB gain bandwidth of the RA is 40%, and its maximumgain, aperture efficiency and XP levels are 19.3 dB, 69% and − 35 dB,respectively, which are in good agreement with simulation.
机译：在本文中，用于线性偏振的超宽带的设计过程（UWB）呈现单层反射阵列天线（RA）。 ra包括环形环形贴片的新型单元细胞;每个环连接到两个相位延迟线以在宽的阶段实现线性和平滑相位响应频率范围。在拟议的RA中，设计的真实阶段延迟提供三个以上的360°周期。通过调整这些相位延迟的长度线，已经获得了宽范围的1300°的线性相位变异宽频段。宽带宽和低交叉极化（XP）水平使用利用的新型单元电池元素和优雅的镜像预测安排。要验证模拟结果，圆形的原型制造具有22.86厘米厘米的光圈，其辐射图案是测量。 RA的测量3-DB增益带宽为40％，最大值增益，光圈效率和XP水平为19.3 dB，69％和 - 35 dB，分别与模拟吻合良好。

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