A Dual-Passband Frequency Selective Surface for 5G Communication

Li, Yi; Ren, Peng; Xiang, Zheng

doi:10.1109/lawp.2019.2944936

Cited by 45 publications

(17 citation statements)

References 13 publications

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“…A frequency selective surface (FSS) is formed by a regularly arranged array of identical unit cells, which offer spatial filtering characteristics 1 . Over the last years, FSSs have found multiple applications in communications systems, 2–3 electromagnetic (EM) shielding structures, 4 polarization transformers, 5–6 radar‐cross‐section (RCS) reduction materials, 7 asymmetric transmission structures, 8 etc. In broadband communications involving frequency reuse or multiple transmission/reception bands, the design of FSSs with multi‐band characteristic 2,3,9 is of key importance to increase the capacity of the system and reduce the interference between the operating bands.…”

Section: Introductionmentioning

confidence: 99%

“…multiple transmission/reception bands, the design of FSSs with multi-band characteristic 2,3,9 is of key importance to increase the capacity of the system and reduce the interference between the operating bands. An example of the latter is satellite communications in X, Ku and Ka bands, where multi-band FSSs can be applied to design shared-aperture multi-band antenna systems, either based on a parabolic reflector configuration with an FSS as sub-reflector [10][11][12] or based on stacked dedicated reflectarrays for each frequency band that are separated (and electrically isolated) by an intermediate FSS layer.…”

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confidence: 99%

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Active frequency selective surface with switchable response for satellite communications in X and Ka bands

Abdollahvand

Martinez‐de‐Rioja

Forooraghi

et al. 2022

Int J RF Mic Comp-Aid Eng

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This article proposes an active frequency selective surface (FSS) with application to satellite multi-band antennas in X and Ka bands. The FSS offers two reflective bands at 20 and 30 GHz (downlink and uplink frequencies of broadband communication satellites in Ka-band) under one biasing state, whereas the frequency characteristics are switched in X-band (between 9 and 12 GHz, frequencies used for broadcast satellite services and space exploration) under the second biasing state. The unit cell of the FSS consists of three metallization layers, including four PIN diodes on the bottom layer that provide reconfigurability in X-band. The FSS performance has been analyzed using an equivalent circuit model diagram, which provides a better understanding of the operation principle. The proposed FSS exhibits a robust transmission response for incidence angles up to 40 . Several samples of the FSS formed by a 2 Â 4 cell array have been fabricated and measured in a waveguide simulator to confirm the results of the electromagnetic simulations at the lower operating frequencies.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Active frequency selective surface with switchable response for satellite communications in X and Ka bands

Abdollahvand

Martinez‐de‐Rioja

Forooraghi

et al. 2022

Int J RF Mic Comp-Aid Eng

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“…Additionally, Zhang's study enhanced this approach by designing a multi-layer FSS and controlling the chemical potential of a graphene layer [9]. Furthermore, they could also be applied to forthcoming 5G communication to improve signal transmission performance [10]. Usually, FSSs are made from wave-transparent composite materials covered with a thin metal layer.…”

Section: Introductionmentioning

confidence: 99%

Nanosecond Laser Etching of Aluminum-Plated Composite Materials Applied to Frequency Selective Surfaces

et al. 2020

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High-quality frequency selective surfaces (FSSs) are important for electromagnetic signal absorption/filtration. Usually, they are made from wave-transparent composite materials covered with a thin metal layer. Current machining methods show some disadvantages when performing fabrication on the structure. Based on its flexibility and uncontactable processing characteristics, nanosecond laser etching of aluminum-plated composite materials applied to FSSs was investigated. To observe the influence of the laser light incident angle, etching of a series of square areas with different incident angles was performed. Thereafter, an image processing method, named the image gray variance (IGV), was employed to perform etching quality evaluation analysis. The observed microscopic pictures of experimental samples were consistent with those of the IGV evaluation. The potential reasons that might affect the etching quality were analyzed. Following all the efforts above, an incident angle range of ±15° was recommended, and the best etching result was obtained at the incident angle of 10°. To observe the influence of the laser pulse overlap and focal spot size on the etched area border uniformity and on the potential damage to the base materials, a theoretical equation was given, and then its prediction of area border edge burrs fluctuation was compared with the experiments. Furthermore, SEM pictures of etched samples were examined. Based on the study, a processing window of the laser pulse overlap and focal spot size was recommended. To conclude, optimal etching results of the FSS materials could be guaranteed by using the right laser operating parameters with the nanosecond laser.

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“…communication systems or radar applications. Therefore, AFSSs are an attractive solution to enhance flexibility, security, and efficiency of the upcoming generations of wireless communication systems [3][4][5][6][7].Recently, multiband FSSs have been developed by virtue of their versatility in multifrequency/multistandard system implementations [8][9][10][11][12][13]. Often, multiband communication systems use channels or services that are closely spaced in frequency.…”

mentioning

confidence: 99%

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confidence: 99%

Independently Tunable Closely Spaced Triband Frequency Selective Surface Unit Cell Using the Third Resonant Mode of Split Ring Slots

et al. 2021

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In this paper, a tunable triband frequency selective surface unit cell based on varactor-loaded split ring slots is presented. By using the third resonant mode, a considerable mutual coupling reduction between adjacent ring slots is obtained ensuring both close band response as well as independent band tuning. Simulated results show the tunable properties of the proposed approach by shifting the three passbands resonant frequencies from 8.368, 10.276, and 12.010 GHz (for the unloaded split ring slots), to 7.732, 9.202, and 10.900 GHz, respectively, when each split ring slot is loaded with a capacitance of 140 fF. Furthermore, the metal shorts that split the ring slots as well as the metal rings located in between the slots are used to build the conducting paths to bias each varactor with minimum disruption in the RF response. A demonstrator based on an X-band diaphragm was designed, fabricated, and experimentally tested. Measured results using a varactor with capacitance range of 30-65 fF show resonant frequencies for the unbiased varactors at 8.53, 9.70 and 11.47 GHz with insertion loss of 1.1, 2.3 and 2.4 dB, respectively, while biasing the diodes at maximum reverse voltages (24 V) provides resonant frequencies at 8.74, 10.03 and 11.77 GHz with insertion loss of 0.8, 1.4 and 1.7 dB, respectively. Frequency shifts of 210, 330 and 300 MHz for the first, second and third resonant frequencies were obtained, respectively. The -10 dB reflection coefficient bandwidths were 495 MHz for the first band, 436 MHz for the second band and 418 MHz for the third band. Close band response is verified obtaining frequency band ratios of 1.18 and 1.14 for the third to the second resonance, and for the second to the first resonance, respectively.INDEX TERMS Frequency selective surfaces, split ring resonators, mutual coupling. communication systems or radar applications. Therefore, AFSSs are an attractive solution to enhance flexibility, security, and efficiency of the upcoming generations of wireless communication systems [3][4][5][6][7].Recently, multiband FSSs have been developed by virtue of their versatility in multifrequency/multistandard system implementations [8][9][10][11][12][13]. Often, multiband communication systems use channels or services that are closely spaced in frequency. Nowadays multiple X-band systems are deployed in urban areas. Point-to-point and point-tomultipoint telecommunication systems operate at 10.75-11.25 GHz, weather radars occupy 9.3-9.5 GHz band, and 11.45-11.70 GHz frequency band is destined to ensure

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A Dual-Passband Frequency Selective Surface for 5G Communication

Cited by 45 publications

References 13 publications

Active frequency selective surface with switchable response for satellite communications in X and Ka bands

Active frequency selective surface with switchable response for satellite communications in X and Ka bands

Nanosecond Laser Etching of Aluminum-Plated Composite Materials Applied to Frequency Selective Surfaces

Independently Tunable Closely Spaced Triband Frequency Selective Surface Unit Cell Using the Third Resonant Mode of Split Ring Slots

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