X波段铁氧体微带环行器阵列封装设计与仿真

Package design and simulation of a ferrite microstrip circulator array applied at X-band frequency

对一种新型的X波段瓦片式相控阵雷达中铁氧体微带环行器阵列(4×4)封装结构展开研究,设计了一种小体积、高密度的微带环行器阵列封装形式。基于HFSS三维仿真软件对该环行器阵列进行仿真,在满足其环行功能的同时,实现了环行器与天线和T/R组件的垂直互联。仿真结果表明,在8.7～12 GHz范围内,环行器阵列正向插入损耗(S12)小于0.52 dB,反向隔离度(S21)和回波损耗(S11)均大于20 dB。

A new structure of a X-band microstrip ferrite circulator array (4×4) for phased array radars is investigated.A circulator array package with small volume and high integration is designed.Based on the HFSS software,simulation and modeling of the circulator array are carried out.The circulator array behaves well in circulate function.The vertical interconnection of circulator,antenna and T/R module is implemented.The simulation results reveal that,at 8.7 to 12 GHz,the insertion loss (S12) is less than 0.52 dB and both the isolation degree (S21) and return loss (S11) are higher than 20 dB.