一种高功率微波宽带紧耦合偶极子阵列天线  

A tightly coupled dipole array antenna with high power and broadband

作　　者：龚鸿州 张建德[1] 袁成卫[1] 张强[1] 许亮 Gong Hongzhou;Zhang Jiande;Yuan Chengwei;Zhang Qiang;Xu Liang(College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学前沿交叉学科学院,长沙410073

出　　处：《强激光与粒子束》2024年第1期49-54,共6页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(62071477、62101577);湖南省自然科学基金项目(2021JJ40660)。

摘　　要：提出了一种新型高功率微波宽带紧耦合偶极子阵列天线。在常规的紧耦合偶极子阵列天线的基础上,该阵列天线通过采用全金属结构设计、天线匹配层和密封层一体化设计以及调节天线结构的手段,获得了宽带高功率性能。仿真结果显示,在0.8~4.0 GHz的范围内,天线未扫描时的驻波比小于2;在16 mm×32 mm单元尺寸内和1个大气压的SF6气体中,功率容量达到0.12 MW;以该单元天线组成10×10阵列,100个单元总尺寸仅为160 mm×320 mm,在1个大气压的SF6气体中,功率容量可以达到12 MW,另外,该天线可实现45°的宽角扫描。该阵列天线的提出为实现高功率微波宽带天线的宽频带、大角度扫描、紧凑化、小型化以及低剖面化提供了参考。A novel tightly coupled dipole array antenna with high power and broadband is proposed in thispaper.On the basis of conventional tightly coupled dipole array antennas,and by adopting an all-metal structuredesign,an integrated design of antenna matching layer and sealing layer,and a method of adjusting the antennastructure,a high-power and broadband performance of such an array antenna is obtained.The simulation results showthat the standing wave ratio of the array antenna is less than 2 at the broadside in the range of 0.8-4.0 GHz.And thepower capacity of an element antenna reaches 0.12 MW within the size of 16 mm×32 mm in the space full of SF6 atone atmospheric pressure.Moreover,the power capacity of the 10×10 array antenna composed of 100 elements canreach 12 MW within the size of 320 mm×640 mm in the space full of SF6 at one atmospheric pressure.In addition,the array antenna can achieve a wide-angle scan of 45°.The proposed array antenna provides a solution for high-powermicrowave broadband antennas to achieve a broadband,large-angle scanning,compact,miniaturized,and low-profileperformance.

关 键 词：高功率微波 紧耦合 波束扫描 功率容量 紧凑性 

分 类 号：TN82[电子电信—信息与通信工程]