Design of wideband diplexer using broadside-coupled filters and stepped-impedance resonators
作者： Pin-Tang Chiu , Pu-Hua Deng , Chun Hsiung Chen , Bo-Li Huang , Hsin-Han Tung
DOI:
关键词: Resonator 、 Band-pass filter 、 Communication channel 、 Diplexer 、 Microstrip 、 Electronic engineering 、 Wideband 、 Passband 、 Stopband 、 Physics
摘要: In this study, a wideband diplexer is proposed and the associated design concepts are also briefly discussed. First, two broadside-coupled bandpass filters employed in phase so as to broaden passband bandwidths of diplexer. Next by adopting stepped-impedance resonators filter (BPF A) for low-band channel, one may shift its spurious far away from B) high-band channel that stopband be extended. Based on these concepts, with 3dB fractional 34% 34.5% around center frequencies 1.71 GHz 3.9 GHz, respectively, implemented examined.
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