双频双圆极化小型化微带天线的设计  

Size Reduced Dual-Band Dual Circular Polarization Microstrip Antenna

作　　者：杨杰[1] 卢春兰[2] 沈菊鸿[3] 

机构地区：[1]解放军理工大学通信工程学院研究生3队,江苏南京210007 [2]解放军理工大学通信工程学院,江苏南京210007 [3]解放军理工大学通信工程学院研究生1队,江苏南京210007

出　　处：《军事通信技术》2013年第3期16-19,共4页Journal of Military Communications Technology

基　　金：国家自然科学基金资助项目(61271103)

摘　　要：设计了一种新型小型化双频双圆极化微带天线。通过两个工作于主模的正方形贴片来实现双频双圆极化辐射,天线可工作在两个频点:1.616 GHz和2.495 GHz。在1.616 GHz频率辐射左旋圆极化波(LHCP),在2.495 GHz频率辐射右旋圆极化波(RHCP)。下层贴片开L型缝隙实现小型化,与普通的双频圆极化天线相比,其尺寸减小了21.65%,有效实现了小型化。天线采用同轴线单点馈电,且两层贴片之间未引入空气层,结构紧凑,便于加工。A novel size reduced dual-band dual circular polarization microstrip antenna was designed. The antenna can achieve dual-band dual circularly polarized radiation through two square patches working in the main mode. The antenna can work at two frequencies （1. 616 GHz and 2. 495 GHz）. Left Hand Circular Polarization（LHCP） was achieved when working at 1. 616 GHz, while Reft Hand Circular Polarization（RHCP） was achieved when working at 2. 495 GHz. Miniaturization was achieved because of the L-shaped slot on the lower patch. Compared with the conventional antenna, the size can be reduced by 21.65%. The antenna is fed by single probefed. There is no space between the two substrates, so the compact antenna is easy to fabricate.

关 键 词：双频 双圆极化 小型化 微带天线 

分 类 号：TN82[电子电信—信息与通信工程]