A Novel Dual-Band Bandpass Filter Using Composite Metamaterial Resonators

JIN Yuting; SI Li-Ming; XU Zhan; ZHANG Qingle; HUANG Hui; HU Weidong; WU Yuming; Wei-Hua Yu; LV Xin

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A Novel Dual-Band Bandpass Filter Using Composite Metamaterial Resonators

JIN Yuting 1,SI Li-Ming 1 *,XU Zhan 1,ZHANG Qingle 1,HUANG Hui 2,HU Weidong 1,WU Yuming 1,Wei-Hua Yu 1,LV Xin 1

1.Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, People’s Republic of China

2.Division of Electronics and Information Technology, National Institute of Metrology, Beijing 100013, China

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Funding: This work was supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China （No.Grant No. 20131101120027), the National Natural Science Foundation of China）

Opened online: 3 April 2015

Accepted by: none

Citation: JIN Yuting,SI Li-Ming,XU Zhan.A Novel Dual-Band Bandpass Filter Using Composite Metamaterial Resonators[OL]. [ 3 April 2015] http://en.paper.edu.cn/en_releasepaper/content/4636972

A novel dual-band bandpass filter is proposed with metamaterial-inspired transmission line structure. The filter is composed of one outer square closed-ring resonator (SCRR) and two inner electric-LC (ELC) resonators developed on conductor-backed coplanar waveguide (CBCPW). Through full-wave electromagnetic simulations based on finite-element method, it is shown that both passbands can be individually contorted by tuning the structural parameters of the composite metamaterial resonators. The complex dispersion relations are derived from the scattering parameters to better understand the mechanism. Two passbands of the filter are centered at 8.76 GHz and 11.04 GHz, with 3-dB bandwidths of 130 MHz and 290 MHz, respectively. The simulated and measured results are in good agreement.

Keywords:metamaterial; dual-band; bandpass; filter

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