基于点状波束方向图的新型分频天线阵列结构

D. M. Azzam, S. Zainud-Deen, H. Malhat, M. M. Badawy
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引用次数: 0

摘要

本文提出了一种新的频变阵列结构,如超二次频变阵列(FDA)和利用FDA中额外自由度的三维共形阵列。分析了基于点状波束形成的FDA阵列在不同位置的目标检测。该方法是基于非线性频偏和元件发射多频的方法。研究了一个17元元间距为0.5λ的线性阵列。介绍了超二次型、椭圆型、圆形、方形和矩形的FDA阵列。提出了三维共形阵列、锥形螺旋阵列、圆柱形螺旋阵列和球形螺旋阵列。目标定位在距离R,仰角θ和方位角φ。新的几何形状的FDA阵列可以提供更好的干扰抑制和杂波抑制比线性阵列。它们可能提供三维可操控性和更多定向光束的潜在解决方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
New Configurations of Frequency Diverse Antenna Arrays Based on Dot-Shaped Beampatterns
In this paper new configurations of frequency diverse arrays, like superquadric frequency diverse arrays (FDA) and 3D conformal arrays utilizing the extra degrees of freedom in FDA have been proposed. A target detection at different positions using FDA arrays based on dot-shaped beamforming is analysis. The method is based on nonlinear frequency offset and elements transmitting multi-frequency. A linear array of 17 elements with inter-element distance 0.5λ spacing is investigated. Superquadric, elliptical, circular, square and rectangular FDA array are explained. The 3-D conformal arrays, conical helical, cylindrical helical and spherical helical arrays FDAs are proposed. The target is localized in range R, elevation θ, and azimuthal angle ϕ. The new geometries FDA arrays may offer much better interference suppression and clutter rejection than the linear array. They may provide a potential solution of 3D steerability and more directional beams.
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