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Chin. Phys. B, 2018, Vol. 27(6): 068102    DOI: 10.1088/1674-1056/27/6/068102
INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY Prev   Next  

Wider frequency domain for negative refraction index in a quantized composite right-left handed transmission line

Qi-Xuan Wu(吴奇宣)1, Shun-Cai Zhao(赵顺才)2
1 Faculty of Foreign Languages and Culture, Kunming University of Science and Technology, Kunming 650500, China;
2 Department of Physics, Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
Abstract  The refraction index of the quantized lossy composite right-left handed transmission line (CRLH-TL) is deduced in the thermal coherence state. The results show that the negative refraction index (herein the left-handedness) can be implemented by the electric circuit dissipative factors(i.e., the resistances R and conductances G) in a higher frequency band (1.446 GHz ≤ ω ≤ 15 GHz), and flexibly adjusted by the left-handed circuit components (Cl, Ll) and the right-handed circuit components (Cr, Lr) at a lower frequency (ω=0.995 GHz). The flexible adjustment for left-handedness in a wider bandwidth will be significant for the microscale circuit design of the CRLH-TL and may make the theoretical preparation for its compact applications.
Keywords:  quantized composite right-left handed transmission line      negative refraction index      frequency domain  
Received:  19 December 2017      Revised:  11 March 2018      Accepted manuscript online: 
PACS:  81.05.Xj (Metamaterials for chiral, bianisotropic and other complex media)  
  78.67.Pt (Multilayers; superlattices; photonic structures; metamaterials)  
  78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))  
  42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos.61205205 and 6156508508),the General Program of Yunnan Provincial Applied Basic Research Project,China (Grant No.2016FB009),and the Foundation for Personnel Training Projects of Yunnan Province,China (Grant No.KKSY201207068).
Corresponding Authors:  Shun-Cai Zhao     E-mail:  zhaosc@kmust.edu.cn

Cite this article: 

Qi-Xuan Wu(吴奇宣), Shun-Cai Zhao(赵顺才) Wider frequency domain for negative refraction index in a quantized composite right-left handed transmission line 2018 Chin. Phys. B 27 068102

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