摘要
本工作基于高温超导薄膜材料镝钡铜氧(DyBCO)和电可调电容技术,设计开发了工作于甚高频(VHF)频段的五阶可重构超导带通滤波器和超导带阻滤波器。采用协同仿真的设计方法,给出了两种设计方案的等效电路、理论曲线、物理电路的设计过程和可重构超导滤波器的仿真结果,最后给出了实际测试曲线。测试结果表明:可重构超导带通滤波器的可调频率范围为235~250 MHz,通带带宽为0.7 MHz,带外抑制度大于70 dB;可重构超导带阻滤波器的可调频率范围为220~267 MHz,阻带带宽为1.0 MHz,通带损耗小于0.1 dB。
Based on the high temperature superconducting(HTS)thin film material DyBCO and electrically tuning varactor,5-pole reconfigurable superconducting band-pass filter and superconducting band-stop filter working in very high frequency(VHF)band have been designed and developed.The equivalent circuit,theoretical curve,layout design process of the two filters are presented by using the collaborative simulation method.Finally,the simulation results and the actual test curves of the reconfigurable superconducting filter are given.The results show that:(1)the adjustable frequency range of reconfigurable superconducting band-pass filter is 235~250 MHz,and the bandwidth is 0.7 MHz,out-of-band rejection is more than 70 dB;(2)the adjustable frequency range of the band-stop filter is 220~267 MHz,and the stopband width is 1.0 MHz,the passband loss is less than 0.1 dB.
作者
季来运
JI Lai-yun(Tianjin Hi-Tech Superconducting Electronic Co.,Ltd,Tianjin 300384,China)
出处
《功能材料与器件学报》
CAS
2022年第1期29-35,共7页
Journal of Functional Materials and Devices
关键词
可重构滤波器
高温超导薄膜
可变电容器
Reconfigurable filter
High temperature superconducting film
Tuning varactor
