[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5916/jkosme.2015.39.1.45

Study on Equivalent Circuit and Bandwidth of Short Wavelength Thin-film Transmission Line Employing ML/CPW composite structure for Miniaturization of wireless Communication System on RFIC

Son, Ki-Jun (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Jeong, Jang-Hyeon (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Kim, Dong-Il (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Yun, Young (Department of Radio Communication Engineering, Korea Maritime and Ocean University)

Publication Information

Journal of Advanced Marine Engineering and Technology / v.39, no.1, 2015 , pp. 45-51 More about this Journal

Abstract

In this paper, we study the RF characteristics of the short wavelength thin-film transmission line employing microstrip line (ML)/coplanar waveguide (CPW) composite structure on silicon substrate for application to RFIC (radio frequency integrated circuit). The thin-film transmission line employing ML/CPW composite structure showed a wavelength shorter than conventional transmission lines. Concretely, at 10 GHz, the wavelength of the transmission line employing ML/CPW composite structure was 6.26 mm, which was 60.5 % of the conventional coplanar waveguide. We also extracted the bandwidth characteristic of the transmission line employing ML/CPW composite structure using equivalent circuit analysis. The S parameter of the equivalent circuit showed a good agreement with measured result. According to the bandwidth extraction result, the cut-off frequency of thin-film transmission line employing ML/CPW composite structure was 377 GHz. Above results indicate that the transmission line employing ML/CPW composite structure can be effectively used for application to broadband and compact RFIC.

Keywords

Thin-film transmission line; Silicon; RFIC; Coplanar Waveguide;

Citations & Related Records

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