一种新型宽带印制天线  

A New Type of Broadband Printed Antenna

作　　者：蒋芹[1] 洪伟[1] 

机构地区：[1]东南大学毫米波国家重点实验室,南京210096

出　　处：《微波学报》2001年第3期17-23,共7页Journal of Microwaves

基　　金：海外青年合作研究基金资助项目 (60 0 2 810 1)

摘　　要：本文给出了一种新型双偶极子型宽带印制天线 ,并设计出相应的类平行宽边耦合双线双面馈电结构。采用矩量法求解积分方程进行理论分析 ,由此设计出一种新型宽带印制天线 ,并进行实验测试。理论分析表明 :在相同的基片上 ,双偶极子型印制天线比普通微带振子天线的带宽宽得多 ;同时实测结果表明 :在 0 .8mm的介质基片上 ,工作于中心频率 2 GHz的该新型天线带宽可达 2 3% (VSWR<2 .0 ) ,增益达 4 .3d Bi。该宽带天线为平面印制结构 ,易于与电路集成 ,亦可做为天线阵元 ,成本低 。A new type of broadband printed twin dipole antenna is proposed in this paper. Corresponding feed structure of broadside coupled parallel line is also designed. A practical printed antenna was designed according to theoretical analysis by the Method of Moments(MOM) with integral equation. The measurement was also carried out. The results indicate that bandwidth of the new antenna is larger than that of the normal microstrip dipole fabricated on the same substrate. Bandwidth greater than 23% at VSWR<2.0 can be obtained on a 0.8mm substrate at the center frequency of 2GHz. This new broadband printed antenna is easy to be integrated with MMIC, and suitable for element of array due to its simple planar configuration.

关 键 词：宽带印制天线 双偶极子型 谱域导抗法 分层介质 积分方程 

分 类 号：TN82[电子电信—信息与通信工程]