Wideband slotline-ring-resonator bandpass filters under triple resonances
Zhu W.2; Chen D.2; Bu H.1; Zhu L.1; Cheng C.2
Source Publication2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, IEEE MTT-S IMWS-AMP 2015 - Proceedings
AbstractA novel wideband bandpass filter using back-to-back microstrip-slotline transition and triple-mode slotline resonator is proposed. The triple-mode resonator is constructed with one full-wavelength slotline ring and a single short-circuited stub. Two microstrip feed lines are placed above the slotline in such a way that two intersection positions are placed at the 54° separation along the ring. With a proper choice of the length of stub, the first three resonances can be quasi-equally located to construct a wide passband. To verify the design concept, a filter prototype is finally designed, fabricated and measured. The predicted results are well confirmed in experiment.
Keywordmicrostrip-slotline transition slotline ring resonator triple resonant modes wideband bandpass filter
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Document TypeConference paper
Affiliation1.Universidade de Macau
2.Nanjing University of Post and TeleCommunications
Recommended Citation
GB/T 7714
Zhu W.,Chen D.,Bu H.,et al. Wideband slotline-ring-resonator bandpass filters under triple resonances[C],2015.
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