Dual-functional power divider with harmonic suppression

This paper presents a novel power divider integrated with bandpass filters (BPFs). It splits the power equally and selects the desired frequency spectrum at the same time. Besides, the device could suppress the harmonic in a wide band. The centrally loaded BPFs are employed to replace the impedance transformers of power divider. The isolation elements are placed at the center of the symmetric plane to produce the good isolation between output ports. The design is fabricated and measured and the agreement between the simulated and measured results demonstrates the method.