C波段超材料基板高增益微带天线  

A C-Band High-gain Microstrip Antenna Using Negative Permeability Metamaterial Substrate

作　　者：纪宁[1] 赵晓鹏[1] 

机构地区：[1]西北工业大学应用物理系,西安710129

出　　处：《现代雷达》2010年第1期70-73,共4页Modern Radar

基　　金：国家自然科学基金(50632030;50872113);国家重点基础研究发展计划(2004CB719805);国防基础科研项目资助课题

摘　　要：针对普通微带天线增益较低的缺点,在普通微带天线上引入带有双面树枝状结构的新型负磁导率材料作为天线的基板,设计了中心工作频率为5.28GHz的微带天线,对此天线的性能进行了研究。结果表明,通过引入负磁导率材料,天线的性能有了显著的改善,侧向辐射减弱,前向辐射增强,相对于普通微带天线,负磁导率材料微带天线的增益最大提高了2.47dB,E面方向图的半功率波束宽度收缩了21.93°。In view of the disadvantage of the microstrip antenna,such as low gain.A patched antenna designed which operates at 5.28 GHz through using the negative permeability metamaterial as the substrate of the patched antenna,and investigated the performance of the antenna.The results show that the side radiation of proposed microstrip antenna decreased and the forward radiation increased.Moreover,compared to the conventional microstrip antenna,the gain of proposed microstrip antenna is enhanced by 2.47 dB,and the 3 dB beam width of E-plane can be reduced by 21.93°.

关 键 词：负磁导率材料 树枝状结构 微带天线 增益 

分 类 号：TN822[电子电信—信息与通信工程]