Design of Multifunctional Filtering Power Divider in Coaxial Technology for Power Combining Applications

In this paper, we present a novel multifunctional filtering power divider (FPD) which is realized in coaxial technology for power combining applications. This FPD basically includes the functionality of a band pass filter and a power divider within a single component. This not only leads to a small form factor (reduced size due to functional integration) but also eliminates additional losses like cascaded mismatch loss thus enhancing the system performance. The proposed FPD is realized at 3.5 GHz with a fractional bandwidth of 4.3 %.