VHF频段极窄带高温超导滤波器的研制
Development of Very Narrow Band High Temperature Superconducting Filters in VHF Band
DOI: 10.12677/OJCS.2022.111001, PDF,   
作者: 刘 英, 田烁鑫, 王守宇：天津师范大学物理与材料科学学院，天津；孙延东, 季来运*：天津海泰超导电子有限公司，天津
关键词: VHF；高温超导滤波器；极窄带宽；VHF； High-Temperature Superconducting Filter； Very Narrow-Bandwidth
摘要: 本文研制了一款VHF频段的四阶极窄带高温超导滤波器，该滤波器相对带宽为0.8‰，插入损耗小于0.7 dB。滤波器基于切比雪夫原型设计，由直径2英寸的氧化镁(MgO)为基底的高温超导薄膜材料DyBCO制作，采用Sonnet软件进行滤波器的电路搭建、电磁场仿真。文章给出了极窄带滤波器的等效电路图、理论曲线、耦合矩阵、物理电路、模拟仿真和实际测试结果。
Abstract: In this paper, a fourth-order very narrow-band high-temperature superconducting filter with a relative bandwidth of 0.8‰ and insertion loss less than 0.7 dB is developed for the VHF band. The filter is based on a Chebyshev prototype design and is fabricated from DyBCO, a 2-inch diameter magnesium oxide (MgO) based high-temperature superconducting thin film material. The circuit construction and electromagnetic field simulation of the filter are performed by using Sonnet soft-ware. Equivalent circuit diagrams, theoretical curves, coupling matrices, physical circuits, simulations and practical test results of the very narrow band filter are presented in the article.
文章引用：刘英, 田烁鑫, 孙延东, 王守宇, 季来运. VHF频段极窄带高温超导滤波器的研制[J]. 电路与系统, 2022, 11(1): 1-8. https://doi.org/10.12677/OJCS.2022.111001

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