摘要
提出了一种新型超宽带平面魔T的实现方法。该魔T由一个超宽带90度移相器和一个超宽带3dB90度混合电桥构成,通过侧边耦合、宽边耦合等方式实现更宽的频带和更优的耦合度。通过ADS软件电路仿真以及HFSS软件进行三维建模,仿真结果达到设计指标。新型平面魔T的中心频率为8.85GHz,带宽为4.5 GHz^13.2GHz,相对带宽达到98%,幅度不平衡均小于0.8dB,相位不平衡度小于4度,驻波比小于1.4,隔离度大于20dB,尺寸仅为13mm×5mm×1.5 mm。
A new method to implement ultra-wide band planar magic-T in the paper was presented.The magic-T was composed of an ultra-wide band 90 degree phase shifter and an ultra-wide band 3 dB90 degree hybrid bridge.ADS software was used for circuit simulation and HFSS software was used for 3 D modeling,and the simulation results reached the design index.The central frequency of the new planar magic-T is 8.85 GHz,the bandwidth is 4.5 GHz^13.2 GHz,and the relative bandwidth reaches 89%.The amplitude unbalance is less than 0.8 dB,the phase unbalance is less than 4 degrees,the voltage standing wave ratio is less than 1.4,the isolation is more than 20 dB,The size of magic-T is only 13 mm×5 mm×1.5 mm.
作者
方洁
严浩嘉
戴永胜
FANG Jie;YAN Hao-jia;DAI Yong-sheng(Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《功能材料与器件学报》
CAS
2019年第1期39-42,25,共5页
Journal of Functional Materials and Devices
基金
国家重点基础研究发展973计划(No.2009CB320201)
国家国防重点实验室基金(9140C1402021102)
关键词
移相器
多节对称耦合器
宽边耦合
超宽带
phase shifter
multi-element symmetric coupler
broadside coupled
ultra-wide band
