A Modified Wilkinson Divider using Zero-Degree Phase Shifting Composite Right/Left-Handed Transmission Line

This paper proposes a modified Wilkinson divider using a zero-degree phase shifting composite right/left-handed (CRLH) transmission line to obtain good isolation between output ports and to obtain easy fabrication. A zero-degree phase shift CRLH transmission line, which has a total phase shift of zero-degrees, is combined with a right-handed (RH) transmission line with negative phase and a left-handed (LH) transmission line with positive phase. To validate a value of zero-degree on the phase shift CRLH transmission line, compared to a conventional Wilkinson divider, the divider using a zero-degree phase shift line provides comparable input return loss and insertion loss. In addition, the meta-material divider is significantly more compact, occupying only 50% of the size that the conventional divider space.