一种低剖面的全金属相控阵天线设计  

Design of a low-profile all-metal phased array Antenna

作　　者：冯文浩 葛李鹏 杨奔 郭兆清 FENG Wenhao;GE Lipeng;YANG Ben;GUO Zhaoqing(College of Information Science and Engineering,Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211

出　　处：《无线通信技术》2025年第1期23-26,共4页Wireless Communication Technology

摘　　要：本文介绍了一种低剖面的全金属相控阵天线设计。相控阵天线利用多个天线元件的相位和振幅的灵活控制,具备灵活形成和调整电子波束的能力,适应不同通信和雷达场景的需求。文章通过改进传统的辐射喇叭结构,缩小天线单元尺寸,并进行低剖面设计,将天线高度控制在0.5λH以内,实现了低剖面宽带的波束扫描。全金属的设计弥补了介质型天线的损耗和辐射效率低的缺点。本文设计了一个8×8的相控阵天线,尺寸为268.25mm×252mm×30mm。仿真结果表明,在3GHz∽4.2GHz频段内(相对带宽为33%),天线的E面和H面束扫描范围大于±45°,增益跌落不超过3dB,有源反射系数优于-10dB。这种相控阵天线具有良好的辐射性能,提供高增益、低剖面、宽扫描范围和抗干扰能力。This paper introduces the design of a low profile broadband all-metal phased array antenna.The phased array antenna utilizes the flexible control of the phase and amplitude of multiple antenna elements,and has the ability to flexibly form and adjust the electronic beam to meet the needs of different communication and radar scenarios.In this paper,the traditional radiation horn structure is improved,the size of the antenna unit is reduced,and the low-profile design is carried out.The antenna height is controlled within 0.5λH,and the low-profile broadband beam scanning is realized.The design of the all-metal makes up for the shortcomings of the loss and low radiation efficiency of the dielectric antenna.In this paper,an 8×8 phased array antenna with a size of 268.25mm×252mm×30mm is designed.The simulation results show that in the 3 GHz~4.2GHz band(relative bandwidth is 33%),the E-plane and H-plane beam scanning range of the antenna is greater than±45°,the gain drop is less than 3dB,and the active reflection coefficient is better than-10dB.This phased array antenna has good radiation performance,providing high gain,low profile,wide scanning range and anti-interference ability.

关 键 词：相控阵 全金属 低剖面 

分 类 号：TN958.92[电子电信—信号与信息处理]