An ultra-wideband bandpass frequency selective structure based on hybrid multimode resonators
Li,Hanxuan1; Li,Bo1; Zhu,Lei2
2019-12-01
Source PublicationAsia-Pacific Microwave Conference Proceedings, APMC
Volume2019-December
Pages393-395
AbstractIn this paper, an ultra-wideband (UWB) bandpass frequency selective structure (FSS) based on hybrid multimode slotline-microstrip-slotline resonators is presented. The proposed FSS consists of a periodic array of stacked slotline-microstrip-slotline structures, which can achieve mode conversion between the incident spatial waves and the guided waves. Then, by constructing multimode resonators in the hybrid slotline-microstrip-slotline structures, a UWB bandpass response can be achieved with multiple in-band transmission poles. Furthermore, by introducing cross-couplings between the first and last slotline resonators, a pair of transmission zeros are generated at both sides of the desired passband to enhance the roll-off-slopes and the out-of-band performance. In order to verify the concept, a proposed FSS example is designed and fabricated. The measured results exhibit UWB bandpass filtering responses with seven inband transmission poles and a pair of transmission zeros close to the passband, which indicates 117% fractional bandwidth.
KeywordFrequency selective structure (FSS) Multimode resonators Transmission zeros Ultrawideband (UWB) bandpass
DOI10.1109/APMC46564.2019.9038616
URLView the original
Language英语
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Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.College of Electronic and Optical Engineering College of Microelectronics,Nanjing University of Posts and Telecommunications,Nanjing,China
2.Faculty of Science and Technology,University of Macau,Department of Electrical and Computer Engineering,Macao
Recommended Citation
GB/T 7714
Li,Hanxuan,Li,Bo,Zhu,Lei. An ultra-wideband bandpass frequency selective structure based on hybrid multimode resonators[C],2019:393-395.
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