摘要
X波段通信系统需要宽带圆极化天线，目前这类的研究很热门。介绍一种新型宽带圆形圆极化微带天线。该天线是基于空腔理论模型的设计方法，采用独特的切角结构，并用同轴馈电的方法，频率范围为8.25-9.28GHz。在此讨论其展宽带宽和实现圆极化的理论与方案，描述所设计天线的3D结构，给出了设计仿真结果，数据显示驻波比带宽展宽到12％，轴比带宽为3％，表明了该设计能提高圆形微带天线的性能。
X-band communication system needs broadband circular polarization antenna,the current research of this kind is very popular. A new type of broadband circular polarized microstrip antenna is introduced. It is based on the theoretical model of cavity design method,using a unique corner of the structure and the coaxial feed method,frequency range is 8.25-9.28GHz. The theory and program of broadening its bandwidth are discussed, its circular polarization and 3D structure are realized. The design gives the simulation results, the datas show that broadening VSWR bandwidth to 12%,axial ratio band width is 3%,the design can improve the performance of circular microstrip antenna.
出处
《现代电子技术》
2009年第24期91-92,共2页
Modern Electronics Technique
关键词
宽频带
圆极化
微带天线
驻波比
轴比
broadband
circular polarization
microst rip antenna
VSWR
axial ratio
