Design of a Gysel Power Divider/Combiner with Harmonic Suppression Using Cross-Shaped Transmission Line

A novel modified Gysel power divider/combiner (PDC) is presented in this work. The proposed PDC consists of embedding the equivalent cross-shaped open stubs cells, and features suppression at harmonic frequencies, and area miniaturization. Also, by analyzing the ABCD matrix of the equivalent cross-shaped open stubs cell, closed-form formulas of the cell are derived. Measurement results of the proposed PDC, which are collected from the network analyzer, conform to the theoretical predictions.