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Wideband bandpass frequency selective structures on stacked slotline resonators: proposal and synthetic design
Li, H.; Li, B.; Zhu, L.
2020-10-01
Source PublicationIEEE Transactions on Antennas and Propagation
ISSN0018-926X
Pages7068-7078
Abstract

This article presents the proposal, synthetic design, and implementation of a class of wideband bandpass frequencyselective structures (FSSs) with multiple in-band transmission poles. Each FSS element is formed by introducing parallelcoupled stepped-impedance slotline resonators (SISRs) on a printed circuit board (PCB). By periodically printing the FSS elements in long PCB pieces and then stacking them together with a certain distance, the incident spatial waves in free space can be converted into guided waves propagating along the slotline resonators of our proposed FSS and can be reconverted from guided waves into spatial waves. Therefore, the slotline resonators are designed to manipulate the incident spatial waves by controlling the filtering response of the guided waves within the FSS. An equivalent transmission-line (TL) model is then established to explain the manipulation mechanism. In order to systematically synthesize the filtering response, the transfer function of the equivalent TL model is mapped to the generalized Chebyshev equal-ripple response. The closed-form equations are derived, where all of the electrical and physical parameters are determined by the design specifications of in-band equal-ripple return loss (RL) and fractional bandwidth (FBW). To verify the theoretically predicted performances, three examples with different RLs (20, 30, and 10 dB) and FBWs (90%, 60%, and 120%) are designed, fabricated, and measured, respectively. The experimental results demonstrate that the proposed FSSs can achieve a desirable and stable wideband bandpass performance under oblique incidences. Our proposed method can also be applied to the design of other high-order wideband FSSs

KeywordChebyshev Filtering Response Frequencyselective Structure Slotline Synthesis Wideband.
DOI10.1109/TAP.2020.2993312
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000576435300021
The Source to ArticlePB_Publication
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Citation statistics
Cited Times [WOS]:13   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorLi, B.; Zhu, L.
Recommended Citation
GB/T 7714
Li, H.,Li, B.,Zhu, L.. Wideband bandpass frequency selective structures on stacked slotline resonators: proposal and synthetic design[J]. IEEE Transactions on Antennas and Propagation,2020:7068-7078.
APA Li, H.,Li, B.,&Zhu, L..(2020).Wideband bandpass frequency selective structures on stacked slotline resonators: proposal and synthetic design.IEEE Transactions on Antennas and Propagation,7068-7078.
MLA Li, H.,et al."Wideband bandpass frequency selective structures on stacked slotline resonators: proposal and synthetic design".IEEE Transactions on Antennas and Propagation (2020):7068-7078.
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