N-Way Compact Ultrawide Band Equal and Unequal Split Tapered Transmission Lines Wilkinson Power Divider

In this article compact N-way Ultra Wide Band (UWB) equal and unequal split Wilkinson Power Divider (WPD) using exponentially I»/4 Tapered Transmission Line Transformers (TTLTs)is designed and simulated. First 2-way WPDs are designed and simulated and then cascaded to get 4-way, 6-way equal and unequal split UWB WPDs in addition to 8-way equal split UWB WPD. The simulated results of all the designed dividers are good in terms of insertion, return losses and group delay through UWB frequency band. The analysis of these dividers is carried out using the commercial ANSYS High Frequency Structure Simulator (HFSS) software package which based on Finite Element Method (FEM). Moreover, A MATLAB built-in function “fmincon.m” is used to find the optimum values of the three resistors chosen for perfect isolation