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Effective electromagnetic parameters of left-handed coplanar waveguide transmission lines

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5 Author(s)
Jia-Hui Fu ; Microwave Engineering, Harbin Institute of Technology, Harbin, China ; Qun Wu ; Guo-hui Yang ; Fan-Yi Meng
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.3551730 

This paper presents a kind of wideband, low-loss left handed transmission line (LHTL). It is composed of a parallel meander inductance and a serial cutting capacitor based on the coplanar waveguide (CPW) transmission line (TL). A better method of parameter extraction is formulated based on a more accurate Nicolson–Ross–Weir (NRW) approach. According to medium theory, the complex effective parameters of permittivity and permeability have been extracted from transmission and reflection scattering matrix. Through extracting the β parameter of the CPW TL, the characteristics of LHTL have been verified. The effective bandwidth is about 100% from 11 GHz to 21 GHz with low loss.

Published in:
Journal of Applied Physics  (Volume:109 ,  Issue: 7 )

Date of Publication: Apr 2011

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