C波段宽阻带高温超导带通滤波器  

C-band high temperature superconducting bandpass filter with wide stopband

作　　者：岳宏卫[1] 李成 谢清连 Yue Hongwei;Li Cheng;Xie Qinglian(Guangxi Key Laboratory of Precision Navigation Technology and Application,Guilin University of Electronic Technology,Guilin 541004,China;School of Physics and Electronics,Nanning Normal University,Nanning 530001,China)

机构地区：[1]桂林电子科技大学,广西精密导航技术与应用重点实验室,桂林541004 [2]南宁师范大学物理与电子学院,南宁530001

出　　处：《低温与超导》2022年第10期7-11,19,共6页Cryogenics and Superconductivity

基　　金：国家自然科学基金(12064003,51962025);广西自然科学基金(2021JJA170081)资助。

摘　　要：利用改进的半波长SIR设计并制作了一款C波段宽阻带深度抑制的高温超导滤波器。该滤波器结构简单,中心频率在5.765 GHz,带宽为320 MHz,二次谐波被抑制到了基频的3.4倍之外,带外一直到19.71 GHz范围内的阻带抑制深度大于68 dB。In this paper, a C-band HTS filter with wide and deep stopband rejection was designed and fabricated by using a modified half-wavelength SIR, which topology was simple. The center frequency is located at 5.765 GHz, and the 3-dB bandwidth is 320 MHz. The measured out-of-band rejection is better than 68 dB up to 19.71 GHz, which is about 3.4 times of the center frequency.

关 键 词：C波段 宽阻带 高温超导滤波器 SIR 传输零点 

分 类 号：TN713[电子电信—电路与系统]