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http://dx.doi.org/10.5762/KAIS.2013.14.7.3474

Design of a Transmission Line using Defected Ground Structure and Artificial Dielectric Substrate  

Kwon, Kyunghoon (Dept. of Electrical and Comm. System Eng., Soonchunhyang University)
Lim, Jongsik (Dept. of Electrical and Comm. System Eng., Soonchunhyang University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.7, 2013 , pp. 3474-3481 More about this Journal
Abstract
In this work, a new high frequency transmission line structure combined with defected ground structure (DGS) and artificial dielectric substrate (ADS) structure is proposed. DGS patterns give add the additional inductance to transmission lines and results in the increased characteristic impedance for a given line width. To the contrary, ADS presents increased capacitance and reduced line impedance. So both play a role in reducing the length of transmission lines commonly, but in preserving the line impedance complementarily. This means that the length of transmission lines can be reduced furtherly by DGS and ADS without a critical change of line width compared to the cases when one of DGS and ADS is used only. As examples, $35{\sim}100{\Omega}$ transmission lines having DGS and ADS are designed, fabricated, measured, and compared to the simulation results. A good agreement between the simulated and measured line impedances is presented. In addition, the physical lengths of the proposed transmission lines are only 55.4~76.9% of those of the normal microstrip lines for the same electrical lengths.
Keywords
DGS; ADS; microstrip lines; transmission lines;
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Times Cited By KSCI : 1  (Citation Analysis)
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