双角串馈毫米波高增益微带阵列天线的研究  

Research on High Gain Millimeter Wave Microstrip Antenna Array with Double-corner Fed Series Structure

作　　者：李紫婷 刘遨云 李思源 朱俊丽 刘景萍[1] LI Zi-ting;LIU Ao-yun;LI Si-yuan;ZHU Jun-li;LIU Jing-ping(School of Electronic and Optical Engineering,Nanjing University of Science and Technology y Nanjing 210094,China)

机构地区：[1]南京理工大学电子工程与光电技术学院

出　　处：《微波学报》2019年第6期36-39,48,共5页Journal of Microwaves

基　　金：国家自然科学基金(61871442);部委基金(30107030802,61406190101);重大专项(2017-JCJQ-ZD-004)

摘　　要：随着现代通信技术和雷达、引信系统的快速发展,对毫米波天线性能要求越来越高,传统的串并联馈电网络已难以满足需求。文中采用双角串馈结构进行馈电,设计并测试了工作在24 GHz和35 GHz的两款双角馈毫米波天线。仿真的24 GHz天线尺寸24.76 mm×16.92 mm,增益15.59 dB,带宽0.4 GHz,仿真的35GHz天线尺寸17.06 mm×11.22 mm,增益14.73 dB,带宽1 GHz;对35 GHz天线进行加工实测,实测天线增益为14.2 dB,带宽为1 GHz。分析了天线的主要参数影响以及此种结构天线的极化特性。相对于传统的串并联馈电天线,文中研究的天线具有特殊阵列结构,仅通过角馈线相连,无需馈网,降低了馈电损耗,整体尺寸小,增益高,具有一定的推广意义。With the rapid development of modern communication technologies and radar or fuze systems, the requirements for miniaturization and high gain of millimeter-wave antennas are increasing. Traditional series and parallel feeds are no longer sufficient to meet people’s needs. Therefore, in this paper, we use a special array structure, double-corner fed series structure for feeding. We design two double-corner fed millimeter wave antennas operating at 24 GHz and 35 GHz. The simulated 24 GHz antenna has a size of 24.76 mm × 16.92 mm, a gain of 15.59 dB and a bandwidth of 0.4 GHz, the simulated 35 GHz antenna has a size of 17.06 mm × 11.22 mm, a gain of 14.73 dB and a bandwidth of 1 GHz. Then we process and measure the 35 GHz antenna, its gain is 14.2 dB, and its bandwidth is 1 GHz. This paper analyzes the influence of the main parameters and the polarization characteristics of the antenna. Compared with the traditional series-parallel feed antenna, the antenna studied in this paper has a special array structure, which is connected only by corner fed lines, does not need a feed network, reduces the feed loss, has small overall size and high gain, so it has some certain promotion significance.

关 键 词：毫米波天线 双角串馈结构 小型化 高增益 极化特性分析 

分 类 号：TN822[电子电信—信息与通信工程]