宽带1-Bit可重构反射阵天线设计  

Design of A Wideband 1-Bit Reconfigurable Beam-Scanning Reflctarray

作　　者：任雪楠 任建[1,2] 尹应增 Ren Xuenan;Ren Jian;Yin Yingzeng(School of Electronic Engineering,Xidian Univ,Xi'an 710071,China)

机构地区：[1]西安电子科技大学,西安710071 [2]天线与微波技术重点实验室,西安710065

出　　处：《测控与通信》2023年第4期8-11,共4页

摘　　要：基于宽带可重构单元,设计并仿真了1款宽带1-Bit,工作在线极化方式的用于电控波束扫描的可重构反射真列天线。所设计的反射阵单元由顶层的2个方形贴片以及背贴的4个寄生贴片组成,这种堆叠式的结构使得单元具有了宽带的特性。由直流电压控制的PIN二极管使得单元在二极管不同状态时具有不同的反射相位,从而具有可重构的能力。单元与阵面是通过AnsysHFSS2022R1仿真并分析的。通过优化馈线位置与相位分布码本,最终可重构反射阵具有33%的3dB带宽,并且可以在xoz和yoz平面均达到-60°~+60°的波束扫描范围。A 1-bit linear-polarization(LP)reconfigurable reflactarray antenna(RRA)based on a wideband unit is designed and simulated for wideband beam scanning.The reconfigurable unit consists of two rectangular patches with four parasitic patches on the back,such a structure makes it have the characteristics of wideband.PIN diode controlled by DC bias gives the unit reconfigurable characteristics.The unit and the reflectarray is simulated in Ansys HFSS 2022 R1.By optimizing the feed location and the phase compensation schemes,the final reconfigurable array achieves 33%3dB gain bandwidth and can support the scanning angles ranging from-60°to+60°in both xoz plane and yoz plane.

关 键 词：可重构反射阵天线 宽频带 波束扫描 PIN二极管 

分 类 号：TN9[电子电信—信息与通信工程]