A Novel Planar Nolen Matrix Phased Array for MIMO Applications
A Novel Planar Nolen Matrix Phased Array for MIMO Applications
复制标题
用于 MIMO 应用的新型平面诺伦矩阵相控阵
DOI：
10.1109/past43306.2019.9020872
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
B. Arigong
中科院分区：
文献类型：
--
作者：
H. Ren;Hanxiang Zhang;Peizhao Li;Y. Gu;B. Arigong
提出了一种适用于MIMO应用的新型诺伦矩阵相控阵天线。所提出的4 × 4诺伦馈电网络由三角形网格中的六个耦合器和八个移相器组成。每个耦合器代表晶格中的一个节点，每个移相器连接两个相邻的耦合器。通过激励四个输入端口中的一个，所提出的4\times 4$ Nolen矩阵在其输出端口处产生四个唯一的相位差，分别为0°、+180°、+90°和−90°。通过与辐射元件的集成，在期望的方向上实现对应的四个辐射波束。推导了柔性结构Nolen矩阵的闭合方程。为了验证所提出的设计思想，设计、制作了一个工作在5.8GHz的4 × 4诺伦矩阵，并进行了测试，测试结果与仿真结果吻合较好，验证了设计理论的正确性。
In this paper, a novel Nolen matrix phased array for MIMO applications is presented. The proposed $4\times 4$ Nolen feeding network consists of six couplers and eight phase shifters in a triangular lattice. Each coupler represents a node in the lattice, and each phase shifter connects two adjacent couplers. By exciting one of four input ports, the proposed $4\times 4$ Nolen matrix generates four unique phase differences at its output ports, which are 0°, +180°, +90°, and −90°, respectively. By intergrading with radiating elements, the corresponding four radiation beams are achieved in desired direction. The closed-form equations are derived for the proposed Nolen matrix with flexible structure. To verify the proposed design concept, a $4\times 4$ Nolen matrix operating at 5.8 GHz is designed, fabricated and measured, and the simulation and measurement results agree well with each other to prove the design theory.