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Design of a Compact Wilkinson Power Divider Using Meta-Material Lines  

Kim, Jeong-Pyo (E.M.W. Antenna Co. Ltd.)
Kim, Gi-Ho (E.M.W. Antenna Co. Ltd.)
Yang, Myo-Geun (E.M.W. Antenna Co. Ltd.)
Seong, Won-Mo (E.M.W. Antenna Co. Ltd.)
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Abstract
A compact Wilkinson power divider with meta-material transmission line(MM-TL) is proposed. The divider is designed by adding the MM-TL with $+90^{\circ}$ phases shifting instead of the ${\lambda}_g/4$ with $-90^{\circ}$ phases shifting at a simple Wilkinson power divider. The MM-TL consists of three phase shifter unit cells and each cell has the characteristics of the $30^{\circ}$ phases shilling and 6 mm length. Therefore, the length of ${\lambda}_g/4(210 mm)$ TL with $-90^{\circ}$ phases shifting at a simple Wilkinson power divider can be reduced to 18 mm and the Wilkinson divider is very compact.
Keywords
Wilkinson Divider; Meta-Material;
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