Novel high-isolation power divider integrated filtering response

ABSTRACT A bandpass-filtering-response power divider with good isolation is presented in this paper. The short-circuited-loaded resonators are employed to construct the presented compact power divider. The presented divider can be viewed as an integration of a second-order dual-mode bandpass filter and the quasi-Wilkinson power divider. The simulated and measured results of the proposed power divider demonstrate good performance, such as about 30-dB high isolation among the output ports, wide upper stopband, excellent amplitude and phase balancing, and reasonable bandpass-filtering response.

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