Electrically Tunable Evanescent Mode Half-Mode Substrate-Integrated-Waveguide Resonators

被引：29

作者：

Senior, David E. ^{[1
,2
]}

Cheng, Xiaoyu ^{[1
]}

Yoon, Yong-Kyu ^{[1
]}

机构：

[1] Univ Florida, Dept Elect & Comp Engn, Gainesville, FL 32611 USA

[2] Univ Tecnol Bolivar, Cartagena De Indias, Colombia

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2012年 / 22卷 / 03期

基金：

美国国家科学基金会;

关键词：

Complementary split ring resonator (CSRR); half mode substrate integrated waveguide (HMSIW); tunable resonator; varactor diode;

D O I：

10.1109/LMWC.2012.2183860

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：

Electrically tunable evanescent mode half mode substrate integrated waveguide (HMSIW) resonators are implemented for S band applications. An HMSIW loaded with a complementary split ring resonator (CSRR) achieves forward electromagnetic wave transmission below the characteristic waveguide cutoff frequency due to evanescent wave amplification. A variable capacitor connected to one of the conductors of the CSRR changes its effective capacitance to ground, resulting in frequency tuning of the resonator. Three different configurations are investigated with a varactor diode connected between the ground and three different contact points of the CSRR. The external Q factor is slightly affected by the frequency tuning. More than 15% tunability is achieved around 3.4 GHz. Full wave structure simulation results are in good agreement with those of measurement.

引用

页码：123 / 125

页数：3

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