Two-Layer Three-Way Horst Power Divider and Combiner Based-on Microstrip Line with Fixed Impedance Characteristic

This paper presents a two-layer three-way power divider/combiner with the use of a fixed impedance transmission line. Based on the analysis of the even/odd modes, a parametric study was carried out to determine the optimal performance of the proposed design and to select the parameters. In order to reach a balance between isolation and input matching, the resulting bandwidth is estimated. The two-layer configuration is used to implement the structure compactly while providing isolation between non-adjacent ports. Experimental validation of the prototype made at an operating frequency of about 10 GHz was carried out. In accordance with the calculated performance, the measured results show good matching, isolation and transmission performance in the fractional bandwidth of 20\%.