A Novel Dandelion Topology for Multiport Filtering Power Divider

This paper presents a dandelion topology for multi-port (1-to-N) filtering power divider, which can be applied to either the single-ended or balanced designs. Compared with the traditional tree topology, the number of resonators is reduced significantly. Meanwhile, the filtering order and the port number are mutually independent. Based on this topology, the two functions of filtering and power dividing can be designed independently. Three prototypes with equal/unequal split ratio are simulated to show the advantages of the proposed topology.