Science Letters: Lattice type transmission line of negative refractive index |
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| Authors: | Xin Hu and Sailing He |
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| Institution: | (1) Center for Optical & Electromagnetic Research, Zhejiang University, Hangzhou, 310058, China;(2) 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.
Project supported by the National Basic Research Program (973) of China (No. 2004CB719802) and the Natural Science Foundation
of Zhejiang Province (No. R104154), China |
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| Keywords: | Negative refractive index (NRI) Transmission line (TL) Symmetrical lattice Low pass |
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