波束展宽方法在相控阵天线中的应用  

Application of Beam Broadening Method in Phased Array Antenna

作　　者：曾强 ZENG Qiang(The 10th Institute of CETC,Chengdu 610036,China)

机构地区：[1]中国电子科技集团公司第十研究所,四川成都610036

出　　处：《通信电源技术》2025年第5期198-200,共3页Telecom Power Technology

摘　　要：有源相控阵天线用于机间通信和数据传输,有利于实现编队内飞机间的隐蔽通信。为增强通信覆盖和射频抗截获能力,采用多个二维有源相控阵天线实现全机4π空域覆盖,机间通信和数据传输则采用点波束对准和跟踪技术。其中,波束宽度对通信扫描入网速度和射频抗截获能力具有决定性影响。文章利用遗传算法作为阵列方向图综合算法,通过MATLAB编程仿真计算得到宽波束相位权值。将计算得到的相位权值在相控阵天线中进行应用和实测验证。结果表明,通过仅相位加权的方法可以在不损失天线发射通道有源功率的同时展宽波束宽度,该方法可以解决大规模阵列天线波束宽度过窄导致通信入网较慢的问题。Active phased array antenna is used for inter-aircraft communication and data transmission,which is beneficial to realize covert communication between aircraft in formation.In order to enhance communication coverage and radio frequency anti-interception ability,multiple two-dimensional active phased array antennas are used to achieve 4πairspace coverage of the whole aircraft,and spot beam alignment and tracking technology are used for inter-aircraft communication and data transmission.Among them,the beam width has a decisive influence on the speed of communication scanning and the anti-interception ability of radio frequency.The article uses the genetic algorithm as the array pattern synthesis algorithm and obtains the wide-beam phase weights through MATLAB programming simulation and calculation.The calculated phase weights are applied in the phased-array antenna and verified through actual measurements.The results show that the method of only phase weighting can broaden the beamwidth without losing the active power of the antenna transmitting channels.This method can solve the problem of slow communication network access caused by the too narrow beamwidth of large-scale array antennas.

关 键 词：相控阵天线 隐身通信 遗传算法 波束展宽 

分 类 号：TN9[电子电信—信息与通信工程]