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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2008, Vol. 9 Issue (2): 289-292    DOI: 10.1631/jzus.A0720086
Electrical & Electronic Engineering     
Lattice type transmission line of negative refractive index
Xin HU, Sailing HE
Center for Optical & Electromagnetic Research, Zhejiang University, Hangzhou 310058, China; Division of Electromagnetic Engineering, School of Electrical Engineering, Royal Institute of Technology, S-10044 Stockholm, Sweden
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Abstract  In this letter, we introduce a novel passive transmission line of negative refractive index (i.e., left-handedness) based on identical symmetrical lattice type structures [thus called “lattice type transmission line” (LT-TL)]. The dispersion characteristic and the transmission response of the proposed LT-TL are analyzed. While all the other left-handed passive transmission lines are of high pass, the present passive left-handed transmission line is of low pass. Compared with a conventional transmission line, the LT-TL has a phase shift of 180( in the entire wide pass-band.

Key words： Negative refractive index (NRI)      Transmission line (TL)      Symmetrical lattice      Low pass     
Received: 25 November 2007     
CLC:  O44  
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Xin HU
Sailing HE
Cite this article:

Xin HU, Sailing HE. Lattice type transmission line of negative refractive index. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(2): 289-292.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0720086     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2008/V9/I2/289

[1] Hu Xin, He Sailing. A new class of negative refractive index transmission line[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2007, 8(8): 1179-1182.
[2] Li Jiu-sheng, Zou Yong-zhuo, He Sailing. A power divider based on a new kind of composite right/left-handed transmission line (CRLH TL) unit[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(1): 1-4.
[3] Jiang Tian, Feng Yi-jun. Transmission line realization of subwavelength resonator formed by a pair of conventional and LHM slabs[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(1 ): 10-.