低剖面毫米波Butler网络的研究  

Research onlow-profile millimeter wave Butler network

作　　者：周媛 江肖力[1] 韩威 魏浩 Zhou Yuan;Jiang Xiaoli;Han Wei;Wei Hao(The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团第五十四研究所,石家庄050081

出　　处：《电子测量技术》2020年第4期5-10,共6页Electronic Measurement Technology

基　　金：国家自然科学基金(61404119)资助项目。

摘　　要：针对低剖面毫米波多波束阵列天线的需求,设计了一种采用"空气-玻璃"低损耗带状线传输结构的四端口Butler多波束网络。为增强Butler网络端口间隔离度,Butler各端口信号线间设置金属结构,分别通过BGA和TGV实现该金属结构与"空气-玻璃"带状线的两层地平面的互连。仿真结果表明,"空气-玻璃"混合介质带状线高度为0.4 mm,所设计Butler网络在39.65~40.25 GHz的传输损耗为0.47 dB,端口幅度与相位输出差异分别为≤±0.5 dB和≤±6.5°,采用异构集成方法对阵列天线馈电,可实现阵列天线波束四重构。A Butler network with four ports is proposed, this network employs low loss transmission line with air-glass structure, to meet the demands for low profile millimeter wave multi-beam antenna array. The metal structure was located among different signal lines to improve the networks isolation. The metal structure connects to the ground plane above the strip line through the ball grid array(BGA). Through glass via holes(TGVs) were used to connect the metal structure to the ground below the strip line. The simulation results demonstrate that the height of air-glass mixed dielectric is only 0.4 mm and the transmission loss of Butler network is 0.47 dB from 39.65~40.25 GHz. The difference of amplitudes and phase is no more than ±0.5 dB and ±6.5 degree, respectively.

关 键 词：低剖面 毫米波 Butler网络 容差性识别 

分 类 号：TN710[电子电信—电路与系统]