Compact dual-band power divider embedded with DMSWPL slow-wave structure

In this paper, a compact dual-band power divider embedded with defect microstrip with periodic loading (DMSWPL) slow-wave structure is presented. The occupied space is effectively reduced by about 66.89% compared to the conventional dual-band Wilkinson power divider. The structure of this power divider and the formulas used to determine the design parameters have been given. Experimental results show that all the features of a conventional Wilkinson power divider, such as an equal power split, impedance matching at all ports, and a good isolation between the two output ports can be fulfilled at GSM-band (880 MHz similar to 960 MHz) and DCS-band (1710 MHz similar to 1880 MHz) simultaneously.