摘要
低副瓣,尤其是超低副瓣一直是天线设计中的难题。对于毫米波天线,还有可能存在加工困难、加工精度难以保障和损耗大等问题。论文从天线实现方式、馈源、反射面结构及配置等方面进行特殊设计,研制一种可以同时工作于w(51.26~58.0 GHz)和Ka频段(22.24~31.4 GHz)的反射面天线,实测副瓣电平在w和Ka频段分别小于-50 dB和-35 dB,中心频率的天线增益分别达到40.1 dBi和35.0 dBi。给出了设计原理和设计过程,提供了仿真与实测结果,并对结果进行分析和对比,两者的基本吻合证明了设计过程的正确性和设计结果的实用性。
Low sidelobes,especially ultra-low sidelobes,are always a challenge in antenna design.For the millimeter wave antennas,they also bring about difficulties in manufacturing,uncertainty in machining inaccu-racy,large loss and so on.With a special design from antenna implementation,feed,reflector structure and configuration,etc,a reflector antenna that can operate simultaneously in the w(51.26-58.0 GHz)and Ka frequency bands(22.24-31.4 GHz)is fabricated.The measured sidelobe levels of w and Ka frequency bands are less than-50 dB and-35 dB and the antenna gains at the center frequency reached 40.1 dBi and 35.0 dBi respectively.The design principles and the design processes as well as simulated and measured results are presented in this paper.The results are analyzed and compared with each other,and the basic consistence between them validates the correctness of the design process and the practicality of the design result.
作者
何山红
江文豪
陈满坤
韩贤良
HE Shanhong;JIANG Wenhao;CHEN Mankun;HAN Xianliang(School of Electrical and Information Engineering,Anhui University of Technology,Ma’anshan 243002,China)
出处
《系统工程与电子技术》
北大核心
2025年第6期1768-1777,共10页
Systems Engineering and Electronics
基金
新疆微波技术重点实验室开放课题资助课题。
关键词
超低副瓣
毫米波
双频段
高增益
反射面
ultra-low sidelobe
millimeter wave
dual frequency band
high gain
reflector
