Complementary split ring resonator loaded reduced size Wilkinson power divider

It is known that complementary split ring resonators (CSRR) can be used for reducing the size of microwave circuits. In this paper, the length of the 90° branch line in L-Band power divider is reduced by implementing the CSRR in the ground plane underneath the branch line. The overall reduction in foot print of the proposed approach is 37% when compared to the conventional power divider. The power divider operates from 1.65 GHz to 1.8GHz, with nearly equal power division of 3.4dB. The measured isolation between the output ports is 22.73dB.