%0 Journal Article
%T VHF频段极窄带高温超导滤波器的研制<br>Development of Very Narrow Band High Temperature Superconducting Filters in VHF Band
%A 刘英
%A 田烁鑫
%A 孙延东
%A 王守宇
%A 季来运
%J Open Journal of Circuits and Systems
%P 1-8
%@ 2327-0861
%D 2022
%I Hans Publishing
%R 10.12677/OJCS.2022.111001
%X 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。<br />
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.
%K VHF，高温超导滤波器，极窄带宽<br>VHF
%K High-Temperature Superconducting Filter
%K Very Narrow-Bandwidth
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=51778