基于缺陷地结构的毫米波带状线调相研究  

Research on phase adjustment of millimeter wave stripline with DGS

作　　者：石城毓 凌天庆[1] 卢威 Shi Chengyu;Ling Tianqing;Lu Wei(Nanjing Research Institute of Electronic Technology,Nanjing 210039,China)

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《电子测量技术》2021年第4期31-34,共4页Electronic Measurement Technology

摘　　要：毫米波带线网络相位一致性受到加工精度、铜箔粗糙程度、板材厚度不一致的影响,导致等相位设计的走线输出端口存在相位差。传统调相方法增加电路复杂度,成本高且不便于后期调节。提出了一种利用矩形缺陷地结构精确调节相位的方法,采用电磁仿真软件进行建模仿真分析、参数扫描,结果表明加载矩形缺陷地结构的带状线端口电压驻波比小于1.3,插入损耗小于0.7 dB,在30~34 GHz内利用两条矩形缺陷地结构将存在14.5°相位差的两条传输线相位精确调节至相位差小于0.1°,且该结构可根据实际加工结果对不同相位进行精确调节,简化电路结构,降低成本。The phase consistency of mm wave band network is affected by processing accuracy, roughness of copper foil and inconsistent thickness of sheet, resulting in phase difference in the cable output port of iso phase design, and the traditional phase adjustment method increases circuit complexity, which is high cost and not convenient for late adjustment. A method of precisely adjusting phase by rectangular defected ground structure(DGS) is proposed, modeling simulation analysis and parameter scanning are carried out by electromagnetic simulation software, and the results show that the load-rectangular defected ground structure of the ribbon port voltage stop wave ratio is less than 1.3 insertion loss is less than 0.7 dB, at 30 to 34 GHz, two rectangular defected ground structures are used to precisely adjust the phase of the two transmission lines with a phase difference of 14.5 degrees to the phase difference of less than 0.1 degrees, and the structure can adjust the different phases precisely according to the actual processing results, simplify the circuit structure and reduce costs.

关 键 词：缺陷地结构 毫米波带线 精确调相 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]