FOLDED SUBSTRATE INTEGRATED WAVEGUIDE CROSS-COUPLED FILTERS WITH NEGATIVE COUPLING STRUCTURE FOR WIRELESS SYSTEMS

被引：4
|
作者：
Glubokov, O. [1 ]
Nagandiram, S. [1 ]
Tarczynski, A. [1 ]
Budimir, D. [1 ]
机构：
[1] Univ Westminster, Wireless Commun Res Grp, Sch Elect & Comp Sci, London W1W 6UW, England
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2011年 / 53卷 / 11期
关键词：
folded waveguide; substrate integrated waveguide; cross-coupled filter; negative coupling; multilayer design;
D O I：
10.1002/mop.26341
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：
In this article, a compact multilayer substrate integrated filter with pseudoelliptic power transfer function is presented. The fourth-order bandpass filter designed by optimization has a central frequency of 10 GHz with a bandwidth of 800 MHz. It possesses two transmission zeros and exhibits return loss of -30 dB. Miniaturization is achieved using folded waveguide technology. Novel negative coupling structure based on upside down-folded iris-coupled resonators is introduced and investigated. Design procedure is briefly explained, coupling matrix is derived, and investigation of coupling elements is carried out to match calculated coupling coefficients. Results Of full-wave simulation of the filter are in good agreement with the prototype. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2521-2526, 2011; Published online in View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26341
引用
收藏
页码：2521 / 2526
页数：6
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