Design and performance of dual-band high temperature superconducting filter

被引：0
作者：
JI LaiYun MA Jie SUN Jun WANG Lang LI YanQi LIU Bin Tianjin HiTech Superconducting Electronic CoLtdTianjin China Department of Information EngineeringHebei University of TechnologyTianjin China [1 ,1 ,2 ,1 ,1 ,1 ,1 ,1 ,300384 ,2 ,300130 ]
机构：
来源：
Science China(Information Sciences) | 2012年 / 55卷 / 04期
关键词：
HTS filter; dual-band; cross-coupling; cascaded quadruplet structure;
D O I：
暂无
中图分类号：
TN713 [滤波技术、滤波器];
学科分类号：
080902 ;
摘要：
In this paper,a dual-band high temperature superconducting (HTS) filter with 14-pole and 3 cross couplings is presented.The equivalent model,theoretical result,coupling matrix,and the simulated result of the filter are demonstrated.The desired filter is designed and fabricated using double-sided DyBa 2 Cu 3 O 7 thin films on MgO wafer 2 inches in diameter and 0.5 mm in thickness.The filter has two passbands with frequencies 1920-1940 MHz and 1960-1980 MHz respectively,and insertion loss less than 0.2 dB.The measurement results show that the response of practical filters is in good agreement with that of simulated results and theoretical analysis,with the group delay variation being less than ±20 ns over 90% of the filter bandwidth for the two passbands.
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收藏
页码：956 / 961
页数：6
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