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http://dx.doi.org/10.5515/KJKIEES.2012.23.9.1048

Dual-Band Unequal Power-Divider Miniaturized by Metamaterial CRLH Phase-Shift Lines  

Eom, Da-Jeong (Department of Information and Telecommunication Engineering, University of Incheon)
Kahng, Sung-Tek (Department of Information and Telecommunication Engineering, University of Incheon)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.23, no.9, 2012 , pp. 1048-1057 More about this Journal
Abstract
In this paper, a new compact dual-band unequal power divider is suggested. Instead of the quarter wavelength transmission line(TX-line)s for the branches of the conventional Wilkinson's power divider, we use composite right- and left-handed(CRLH) phase-shift lines and can reduce the physical length. With the non-linear dispersion of the meta-meterial, each branch in the proposed divider is designed to have $+90^{\circ}$ and $-90^{\circ}$ at $f_1$ and $f_2$ respectively. To validate the proposed method, the performances of the circuit and full-wave simulation results are shown with the CRLH dispersion curve. The measurement results are compared with the simulation results. Also, the size reduction effect by the proposed scheme is addressed.
Keywords
Dual-Band; Metamaterial; Phase-Shift Line; Transmission Line; Unequal Power-Divider;
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