Dual-band bandpass filters based on dual-mode hilbert fractal resonator

被引:8
作者
Crnojevic-Bengin, Vesna [1 ]
Zemlyakov, Kirill [2 ]
Jankovic, Nikolina [1 ]
Vendik, Irina [2 ]
机构
[1] Univ Novi Sad, Fac Tech Sci, Novi Sad 21000, Serbia
[2] St Petersburg Electrotech Univ, Fac Radio Engn & Telecommun, St Petersburg, Russia
关键词
bandpass filters; multiband filters; microstrip filters; fractals;
D O I
10.1002/mop.27667
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We propose a compact planar dual-mode resonator based on a Hilbert fractal curve that operates at two arbitrary frequencies. The resonator is used to design two types of dual-band bandpass filters for WLAN applications, which exhibit a good trade-off between compact size and high performances, with the overall sizes ranging from 0.22 x 0.21 to 0.44 x 0.1 guided wavelengths and measured insertion losses from 0.38 to 2.5 dB. At the same time, the fabrication of filters is quite simple and requires no modifications in the ground plane or use of vias. In addition, the proposed resonator is used to design single-band filters as well. (c) 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:14401443, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27667
引用
收藏
页码:1440 / 1443
页数:4
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