COMPACT TRI-BAND BANDPASS FILTER BASED ON HYBRID RESONATOR WITH IMPROVED SELECTIVITY PERFORMANCES
作者： Shuai Yang , Jian Zhong Chen , Bian Wu , Chang-Hong Liang
关键词:
摘要: A novel microstrip tri-band bandpass filter is proposed and implemented using hybrid resonator with independently controllable center frequencies good in-between isolation. This constructed by a stepped-impedance stub single end shorted resonator. The resonators are applied to achieve the first second passband, while third passband resonators. By applying even-odd mode approach, resonance frequency ratio between even odd inside attained. Furthermore, multi-path coupling structure can generate transmission zeros at edge of which effectively improve selectivity. Finally, operating 1.91, 2.73, 3.45 GHz designed fabricated. measurement results accord well full-wave electromagnetic responses.
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sci-hub.se 参考文章(19)
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