A TUNABLE BANDPASS FILTER BASED ON VARACTOR LOADED SPLIT-RING RESONATORS

被引：10

作者：

Genc, Alper ^{[1
]}

Baktur, Reyhan ^{[1
]}

机构：

[1] Utah State Univ, Dept Elect & Comp Engn, Logan, UT 84322 USA

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2009年 / 51卷 / 10期

关键词：

tunable filters; bandpass filters; microwave resonators; microstrip filters; LINES;

D O I：

10.1002/mop.24641

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：

This article presents an electronically tunable varactor-loaded microstrip bandpass filter based on the planar split ring resonators (SRRs). The varactor is a reverse-biased semiconductor diode, and is connected between the concentric rings of the SRR. An individual varactor loaded SRR based bandpass tunable filter module is analyzed. Then a third order tunable filter with 2% fractional bandwidth and a tuning range from 2.11 to 2.34 GHz is assembled from basic filter modules. A prototype filler is designed, fabricated and tested. The maximum tuning range of the prototype filter is 10.2% and the size of the filter is reduced by a factor of 3.5 compared to a coupled line filter. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2394-2396, 2009: Published online in Wiley InterScience (www.interscience.wiley. com). DOI 10.1002/mop.24641

引用

页码：2394 / 2396

页数：3

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