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Stacked slotline structure based unit cell and its application for synthesis of 3-D bandpass frequency selective surfaces
Zhang, W.; Li, B.; Zhu, L.
2020-12-01
Source PublicationIEEE Transactions on Antennas and Propagation
ISSN0018-926X
Pages7958-7968
Abstract

This article presents a basic 3-D frequency-selective surface (FSS) unit cell and its application for synthesis of highorder bandpass filtering response. The proposed FSS unit cell is constructed by stacked slotlines loading with shunted capacitive and/or inductive strip lines, which can be easily fabricated with traditional printed circuit board techniques. First, by analyzing the propagation characteristics of the stacked slotline, it can be found that the stacked slotline is seen as a transmission-line transformer, which can convert spatial electromagnetic waves into guided waves. Then, by loading shunted capacitive and/or inductive strip lines, equivalent capacitors and/or inductors are formed with the slotline section, which can be used to realize desirable resonators for bandpass filtering response. Equivalent circuit models are established and circuit parameters are extracted. With the aids of the generalized filter synthesis theory, the proposed unit cell is first applied to synthesize bandpass FSS with 1/4-wavelength transmission-line inverters. An example of a second-order Chebyshev bandpass FSS with the center frequency of 10 GHz is synthesized and designed. The measured results demonstrate that the desired bandpass filtering response is stable for oblique incidence. Furthermore, to obtain high-order response with a reduced FSS thickness, the proposed unit cell is then applied to synthesize bandpass FSS based on a lumped-element bandpass filter. The detailed synthesis procedure and derivations are given. Another example of a third-order Chebyshev bandpass FSS with the center frequency of 10 GHz is also designed, fabricated, and measured.

KeywordEquivalent Circuit Model (Ecm) Filter Synthesis Theory Frequency-selective Surface (Fss) Periodic Structure Slotline.
DOI10.1109/TAP.2020.3001460
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000600854900019
The Source to ArticlePB_Publication
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Citation statistics
Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorLi, B.; Zhu, L.
Recommended Citation
GB/T 7714
Zhang, W.,Li, B.,Zhu, L.. Stacked slotline structure based unit cell and its application for synthesis of 3-D bandpass frequency selective surfaces[J]. IEEE Transactions on Antennas and Propagation,2020:7958-7968.
APA Zhang, W.,Li, B.,&Zhu, L..(2020).Stacked slotline structure based unit cell and its application for synthesis of 3-D bandpass frequency selective surfaces.IEEE Transactions on Antennas and Propagation,7958-7968.
MLA Zhang, W.,et al."Stacked slotline structure based unit cell and its application for synthesis of 3-D bandpass frequency selective surfaces".IEEE Transactions on Antennas and Propagation (2020):7958-7968.
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