开槽式六边形多频带高增益微带天线仿真

Simulation of Slotted Hexagonal Multiband High Gain Microstrip Antenna

摘要:

随着无线通信技术的发展,小型化、多频带微带贴片天线在无线通信中得到了广泛应用。文章设计了一种六边形多频带微带天线,采用同轴线馈电,在六边形贴片的每个顶点内侧进行120°的开槽。通过调整贴片开槽的几何形状和尺寸,能够有效地获得三种不同的谐振模式,可应用于 L波段和C波段。用仿真软件CST对该种天线进行仿真及分析,其结果表明,在工作频段均满足增益G≥6dbi,回波损耗S₁₁＜-10dB。该天线具有结构简单、体积小、增益良好的特点,适用于通信中WiFi频段。

Abstract:

With the development of wireless communication technology, miniaturized, multiband microstrip patch antenna has been widely used in wireless communication. In this paper, a hexagonal multiband microstrip antenna was designed with coaxial line feed and 120 degree slotting on the inside of each vertex of the hexagonal patch. Three different resonant modes could be effectively obtained by adjusting the geometry and size of the slotted patch, which could be applied to L-band and C-band. The simulation software CST was used to simulate and analyze this kind of antenna. The results show that the gain G≥6dbi and the return loss S₁₁＜-10dB are all satisfied in the working band. The antenna has the characteristics of simple structure, small size and good gain, which can be applied to WiFi band in communication.