曲折臂形式的阿基米德螺旋天线小型化研究  

Study on a Miniaturized Meander Archimedean Spiral Antenna

作　　者：宋朝晖[1] 李红梅[1] 杨汉瑛 邱景辉[1] 

机构地区：[1]哈尔滨工业大学,哈尔滨150001 [2]北京电子技术应用研究所,北京100091

出　　处：《微波学报》2009年第2期53-57,共5页Journal of Microwaves

基　　金：航天支撑基金2005;哈尔滨工业大学校基金资助项目(HIT.2003.03)

摘　　要：把阿基米德螺旋天线的天线臂设计成曲折线的形式,以延长天线臂的电长度,从而达到小型化的目的。对几种不同折线方式的天线进行了仿真,选取一种最佳形式,对其进行了优化,并给出了一种宽频带双面微带线巴伦的设计方法。仿真与实验结果表明：在0.8～4.0GHz频段,与经典阿基米德螺旋天线的结果相比,天线的口面面积减小27%时,仍具有良好的阻抗特性、轴比特性和增益特性。This paper introduces a special two-ann Archimedean spiral antenna. The two arms are in the form of meander line, which extend the electric length in order to reduce the antenna size. Several antennas with different types of meander are simulated, and the best one is chosen and optimized. In addition, a design method of a broadband balun with a microstrip hne on both sides is given. The results of the simulation and measurement show that, within the frequency band of 0. 8GHz to 4. 0GHz, the new Archimedean spiral antenna keeps good characteristics of impedance match, axial ratio and gain, while the size of the antenna is reduced by 27% compared with the traditional one.

关 键 词：阿基米德螺旋天线 超宽带天线 曲折臂天线 宽频带巴伦 天线小型化 

分 类 号：TN823.31[电子电信—信息与通信工程] TH213.3[机械工程—机械制造及自动化]