Waveguide band-stop filter design using optimized pixelated inserts

被引：3
作者：
Ouedraogo, Raoul O. [2 ]
Rothwell, Edward J. [1 ]
Diaz, Alejandro R. [3 ]
Fuchi, Kazuko [3 ]
Tang, Junyan [1 ]
机构：
[1] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA
[2] MIT, Lincoln Lab, Lexington, MA 02173 USA
[3] Michigan State Univ, Dept Mech Engn, E Lansing, MI 48824 USA
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2013年 / 55卷 / 01期
基金：
美国国家科学基金会;
关键词：
broadband; genetic algorithm; metamaterials; microwave filters; optimization methods; PLANE FILTERS; METAMATERIALS;
D O I：
10.1002/mop.27246
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：
A technique is introduced for designing band-stop waveguide filters by optimizing a grid of metallic pixels on a dielectric sheet placed longitudinal to the waveguide axis. By using topology optimization and a genetic algorithm, compact broadband waveguide filters may be produced that are easy to fabricate at low cost. Measured and simulated performance show strong rejection in the stopband with a rapid roll off at the band edges and low insertion loss outside the stopband. (C) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:141143, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27246
引用
收藏
页码：141 / 143
页数：3
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