摘 要:目前,由电感、电阻、电容所组成的滤波器已得到广泛应用,与早期的滤波器相比,虽然在频率选择、稳定性及损耗等方面较有优势,但仍然不足以满足目前对于高度集成、高速率的信号的处理要求。因此,为了克服以前滤波器的不足之处,本论文利用Comsol 软件设计了一款基于光子晶体的窄带带通滤波器。此种窄带滤波器的阻带透射率可低至0.1 以下,通带的透射率可高达0.8,在工程上的应用前景广阔。
关键词:窄带滤波器;阻带透射率;Comsol 软件
中图分类号:TN713 文献标识码:A 文章编号:2096-4706(2019)15-0036-03
Design and Simulation of Narrowband Filter Based on Comsol
WANG Daoping,WANG Hui
(Hefei Normal University,Hefei 230601,China)
Abstract:At present,filters composed of inductors,resistors,and capacitors have been widely used. Compared with earlier filters,they have advantages in frequency selection,stability and loss. However,it is still not enough to meet the current requirements for the processing of highly integrated,high-rate signals. Therefore,in order to overcome the shortcomings of these filters,a narrowband band pass filter based on photonic crystal is designed with Comsol software. This kind of narrowband filter can be as low as 0.1,and the transmission ratio of the passband can be as high as 0.8,and the prospect of engineering application is broad.
Keywords:narrowband filter;resistance band transmission;Comsol software
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作者简介:
王道平(1983.11-),男,汉族,安徽淮南人,毕业于安徽大学,硕士研究生,科长,研究方向:教育管理;
王辉(1986.08-),男,汉族,安徽淮北人,副教授,博士,就职于电子信息与电气工程学院,研究方向:计算电磁学。