Filtering power divider with good output balance and unsymmetrical structure

Abstract This article presents a filtering power divider (FPD) that realizes 2‐order bandpass response by only using 2 shorted‐stub loaded resonators (SSLRs). The structure of the proposed FPD is unsymmetrical but it achieves a good output balance. The isolation between output ports is also realized. The detailed theoretical analysis suitable for the FPD with unsymmetrical structure is developed and a discussion for the output balance is also presented. An FPD that works at 2.39 GHz is fabricated and measured for demonstration. A good agreement is obtained between simulation and measurement.