A broadband miniaturized ultra‐thin tri‐band bandpass FSS with triangular layout

Yu, Qiming; Liu, Shaobin; Kong, Xiangkun; Bian, Borui

doi:10.1002/mmce.21738

Cited by 7 publications

(4 citation statements)

References 26 publications

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“…In addition, in contrast with other works, the proposed design also shows good low profile (the overall thickness of 0.057 λ 0 ) and miniaturization (the unit size of 0.139 λ 0 × 0.139 λ 0 ) advantages. Note that although the FSSs in References 16 and 18 have lower profile, the maximum band spacing of them are far worse than that of the proposed FSS. The FSS in Reference 25 has smaller unit size, but it is only suitable for a single polarization, which can only meet very limited applications.…”

Section: Simulation and Experimental Verificationmentioning

confidence: 84%

“…In Reference 17 the FSS provides three pass bands separated by one or two transmission zeros, which leads to high selective response. In Reference 18, through cascading three layers of periodic structures, a highly selective triband FSS is presented. Such FSS, similarly, can provide multiple transmission zeros between two adjacent passbands, which results in wide out‐of‐band rejection and sharp rejection behavior on both side of each passband.…”

Section: Introductionmentioning

confidence: 99%

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A low profile miniaturized widely‐spaced triband bandpass FSS using coupled resonance

Liu

et al. 2020

Int J RF Microw Comput Aided Eng

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In this article, a triband highly selective widely-spaced bandpass frequencyselective surface (FSS) is presented. The proposed FSS is consisted of five metal layers that are separated from each other by four dielectric substrates. Using coupled resonance between layers, three passbands operating at 11.0, 17.4, and 31.9 GHz are achieved. Meanwhile, the dimension of the unit cell of the FSS can be achieved in 0.139λ 0 × 0.139λ 0 (λ 0 is the wavelength of the first resonant frequency in the free-space), and the overall thickness can be 0.057λ 0 , exhibiting miniaturization and low profile characteristics. Due to the proposed FSS can provide multitransmission zeros between two adjacent passbands, the relative bandwidth of the spacing between the second passband and the third passband can reach 58.8% from 17.4 to 31.9 GHz. Thus, a widely spaced response is achieved. In practical, the proposed FSS has an important role in the radio cross-sectional reduction of some military systems, such as homing head, which can simultaneously detecting mid-range and long-range targets. Furthermore, the FSS shows the stable response of angles for both TE and TM polarizations. The equivalent circuit model (ECM) is provided to analysis its operating principle. Finally, a prototype of the proposed FSS is simulated, fabricated and measured. The measured results are in good agreement with the simulation ones.

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Section: Simulation and Experimental Verificationmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

A low profile miniaturized widely‐spaced triband bandpass FSS using coupled resonance

Liu

et al. 2020

Int J RF Microw Comput Aided Eng

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“…Considerable work has been done to obtain multi-band high-order bandpass filtering responses. By cascading multiple gridded-loop structures, References 17 – 19 designed a multi-band FSS with second-order filtering responses in each operating frequency band. However, the larger profile thickness and volume were the outcomes of the cascaded structure.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a complementary structure-based high selectivity tri-band frequency selective surface

Li,

Weng,

et al. 2024

Sci Rep

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This work presents a novel tri-band bandpass frequency selective surface (FSS) that achieves high-order filtering responses in different frequency bands by means of a complementary structure. The proposed FSS is composed of three metal periodic arrays, which are separated by multilayer dielectric substrates. The gridded-double convoluted loop (G-DCL) structure, which is the middle layer structure, is a hybrid resonator that generates different resonant frequencies. The top and bottom layer structures are designed as complementary structures to the middle layer. To accurately describe the frequency responses, an equivalent circuit model (ECM) has been constructed over the entire band from 0 to 16 GHz. The results of the simulation indicate that the developed FSS can generate three pass-bands operating at 3.79 GHz, 8.34 GHz, and 12.52 GHz, respectively, and − 3 dB fractional bandwidths are 52.8%, 13.7%, and 19.7%. The transmission responses at the edges of each passband show a quick roll-off from the passband to the stopband, and there is significant out-of-band suppression between adjacent passbands. Moreover, the FSS maintains excellent angular and polarization stability within a 50° range. For verification, the tri-band FSS has been fabricated and tested. The experimental results match the simulation results, validating the accuracy of the FSS design.

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“…To broaden the absorption bandwidth of the FSS and reduce polarization sensitivity, changing and optimizing the structure of the FSS unit has long been a popular research topic amongst scholars. Although the multi-mode resonant unit structure [9,10] and fractal structure [11] can improve the working bandwidth to a certain extent, the design of this method is complex, and its capability to increase the absorption bandwidth is relatively limited. Compared with the optimization of the unit structure, multi-screen coupling [12][13][14] can broaden the working bandwidth to a certain extent.…”

Section: Introductionmentioning

confidence: 99%

Design of Plasmon Absorbing Structure Suitable for Super High Frequency

Bai

Yang

2023

Electronics

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This paper proposed a plasmonic absorbing structure suitable for super high frequency. The plasmon absorbing structure is a periodic square cavity structure; the bottom of the cavity is a metal plate, the wall of the cavity is a polyester plate, and metal frames loaded with lumped resistors are printed on both sides of the polyester plate. The transmission characteristics of the absorbing structure are studied using the finite difference time domain method. The results show that the plasmon resonance characteristics can be effectively improved by loading the lumped resistance reasonably. The absorption rate of the absorbing structure is over 80% in the 4.3–21.5 GHz frequency band, and in the 4.3–7.7 GHz and 14.2–21.5 GHz frequency bands, the absorption rate is around 90%. Under different polarization modes, it is less sensitive to the incident angle. The transmission response of the absorbing structure is measured in a microwave anechoic chamber, and the measurement results agree well with the simulation results. After replacing the metal bottom plate of the absorber with a metal cavity, the radar cross-section of the cavity is reduced by 99.45% at 10 GHz. It proves that the designed and fabricated absorbing structure has the broadband absorbing ability, high angular stability, and broad application prospects.

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A broadband miniaturized ultra‐thin tri‐band bandpass FSS with triangular layout

Cited by 7 publications

References 26 publications

A low profile miniaturized widely‐spaced triband bandpass FSS using coupled resonance

A low profile miniaturized widely‐spaced triband bandpass FSS using coupled resonance

Design and analysis of a complementary structure-based high selectivity tri-band frequency selective surface

Design of Plasmon Absorbing Structure Suitable for Super High Frequency

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