A Power Divider Based on the Spoof Surface Plasmon Polaritons

In this paper, a symmetrical ultrathin power divider is proposed, which is excited by the specific flaring ground structure and transforms the quasi-TEM waves to TM waves. The proposed structure is composed by the input transmission part with double-row periodic holes printed on the middle stripline and single-row holes printed on the two branch striplines as two output channels, respectively. The measured results of the fabrication model are agree well with the simulated results and can have good applications in further.