An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling

Zhang，Wu1; Lin，Jiahan1; Fang，Xiaohui1; Lin，Yanxiao1; Wang，Kai2; Zhang，Meng3

2022-10-01

10.3390/ma15207371

Materials   Impact Factor & Quartile

1996-1944

In this paper, we demonstrate an active metamaterial manifesting electromagnetically induced transparency (EIT) effect in the microwave regime. The metamaterial unit cell consists of a double-cross structure, between which a varactor diode is integrated. The capacitance of the diode is controlled by a reversed electrical bias voltage supplied through two connected strip lines. The diode behaves as a radiative resonant mode and the strip lines as a non-radiative resonant mode. The two modes destructively interference with each other through conductive coupling, which leads to a transmission peak in EIT effect. Through electrical control of the diode capacitance, the transmission peak frequency is shifted from 7.4 GHz to 8.7 GHz, and the peak-to-dip ratio is tuned from 1.02 to 1.66, demonstrating a significant tunability.

electromagnetically induced transparency metamaterial tunable

SCI

English

Others

Guangzhou Municipal Science and Technology Project[202102010446];Natural Science Foundation of Guangdong Province[2022A1515011354];National Natural Science Foundation of China[61905046];Guangdong Provincial Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong University of Technology[GKPT20-08];Guangdong University of Technology[GKPT20-08];Guangdong University of Technology[GKPT20-08];Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong University of Technology[GKPT20-08];

Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics

Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter

WOS:000875258400001

MDPI

2-s2.0-85140840075

Scopus

1.School of Physics and Material Science,Guangzhou University,Guangzhou,510006,China
2.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.School of Electronics and Communication Engineering,Guangzhou University,Guangzhou,510006,China

Zhang，Wu,Lin，Jiahan,Fang，Xiaohui,et al. An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling[J]. Materials,2022,15(20).

Zhang，Wu,Lin，Jiahan,Fang，Xiaohui,Lin，Yanxiao,Wang，Kai,&Zhang，Meng.(2022).An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling.Materials,15(20).

Zhang，Wu,et al."An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling".Materials 15.20(2022).