【作者】 黄婷； 程崇虎；

【Author】 Ting Huang;Chonghu Cheng;Nanjing University of Posts and Telecommunications;

【机构】 南京邮电大学；

【摘要】 本文提出了一种基于双谐振环的去耦结构,并将其用于提高工作频率在5.8GHz相邻贴片天线的隔离度。两个相邻天线边缘到边缘的距离为3mm,约为中心谐振频率的0.058λ₀,在相邻天线上下两边加载简单的带阻滤波双谐振环去耦结构,谐振环由感应线和电容间隙组成,以减少两个相邻天线之间表面波的传播。仿真结果表明,去耦结构的引入使隔离度提高了约24.9dB,去耦带宽为2.6%,适合窄带应用,同时改善了相邻天线H面辐射方向图,且相邻天线的增益可达到3.4dB。更多还原

【Abstract】 This paper proposes a decoupling structure based on dual resonant rings and it used to improve the isolation of two adjacent patch antennas operating at 5.8 GHz. The distance from the edge to the edge of two adjacent antennas is 3 mm, which is about 0.058λ₀ of the center resonant frequency. A simple band-rejection filter dual resonant ring decoupling structure is loaded on the upper and lower sides of the adjacent antenna. To reduce surface wave propagation between two adjacent antennas. The simulation results show that the introduction of the decoupling structure improves the isolation by about 24.9 dB and the decoupling bandwidth is 2.6%, which is suitable for narrowband applications. At the same time, the H-plane radiation pattern of adjacent antennas is improved, and the gain of adjacent antennas can reach 3.4 dB.更多还原