Screen-Printed Dual-Band Flexible Frequency Selective Surface for 5G Applications

Hettak, K.; Shaker, J.

doi:10.23919/eumc.2019.8910726

Cited by 6 publications

(7 citation statements)

References 6 publications

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“…Moreover, the limited existing transparent bandstop FSSs operating at mmW band exhibit narrow stopband and insufficient performance in terms of both shielding effectiveness and transparency. 14,15,18,19 In this letter, a novel broad stopband FSS for EMI suppression in 5G mmW band is proposed, utilizing an optically transparent conductive ITO material. The ITO material is a commercially available substance with wellestablished manufacturing technologies.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, the use of opaque metal in FSS compromises the light transmittance and aesthetic appearance. To address these concerns, (2) another type of FSS designs employs electrotextiles or transparent conductive materials as alternatives, including silver nanowires (Ag NWs), gallium‐doped zinc oxide (GZO), indium tin oxide (ITO), and so on 15–22 . While most of these transparent FSS structures primarily focus on offering stopbands in L, S, C, and X bands, few designs are available for effectively suppressing EMI at the specific mmW bands of 24.25–40 GHz used in 5G NR.…”

Section: Introductionmentioning

confidence: 99%

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Optically transparent and angularly stable broad‐stopband frequency selective surface for millimeter wave electromagnetic interference mitigation

Tang,

Wang,

Yan

et al. 2024

Micro & Optical Tech Letters

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An optically transparent and angularly stable frequency selective surface (FSS) with a broad stopband is introduced for addressing millimeter wave (mmW) electromagnetic interference. The unique FSS unit cell pattern incorporates a cross patch with Y‐shaped branches, effectively broadening the bandwidth and enhancing the angular stability. Utilizing transparent conductive indium tin oxide deposited on both sides of a glass substrate enables the FSS to reflect and absorb electromagnetic waves. Consequently, the proposed FSS exhibits an exceptionally wide stopband ranging from 18.7 to 40.2 GHz, featuring an insertion loss of 14 dB and maintaining stable angular response up to 60° for both transverse electric and transverse magnetic polarizations. Moreover, an equivalent circuit model is developed to characterize the stopband behavior of the FSS. Finally, measurements conducted on a physical prototype of the proposed FSS validate its effectiveness, showing good agreement with the simulation results.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optically transparent and angularly stable broad‐stopband frequency selective surface for millimeter wave electromagnetic interference mitigation

Tang,

Wang,

Yan

et al. 2024

Micro & Optical Tech Letters

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“…Recently, it has gained prominence even in the microwave community for manufacturing dielectric layers for antennas and other components. Various components such as horn antennas, [2][3][4][5] transmission lines, [6][7][8] array antenna systems, [9][10][11] printed antennas, 12,13 waveguide components, 14,15 and periodic surfaces [16][17][18][19][20][21][22][23][24] have been designed and developed using AM. Initially, methods like electroplating 8 or wire-mesh embedding 10 have been used to realize the conductive parts.…”

Section: Introductionmentioning

confidence: 99%

“…Initially, methods like electroplating 8 or wire-mesh embedding 10 have been used to realize the conductive parts. However, with rapid advancement in AM, alternative methods like inkjet printing, aerosol printing, fused deposition modeling (FDM) with conductive filaments, [16][17][18][19][20][21] screen printing, 22,23 and selective deposition 25 have been used for conductive part prototyping. By choosing appropriate AM techniques, an entire chip module can also be prototyped.…”

Section: Introductionmentioning

confidence: 99%

Additively manufactured frequency selective surface for gain enhancement of sub‐6 GHzmonopole antenna

Mellita

Karthikeyan

Damodharan

2022

Int J RF Mic Comp-Aid Eng

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This article demonstrates the advantages of prototyping microwave components using additive manufacturing (AM) technologies. For corroboration, a frequency selective surface (FSS) with meandered square loop and a monopole antenna are manufactured using AM and printed circuit board (PCB) technologies. The performance of these prototypes designed for sub-6 GHz applications are comparatively analyzed. A parametric study further

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“…At present, the screen-printing technique is favourable for FSS fabrication. Screenprinting for flexible FSS [30,41,42], security paper FSS [43,44], absorber-based FSS [45], and millimetre-wave radar absorbing materials based FSS [46] are among the explored applications concerning the use of screen-printing technique for FSS fabrication. Apart from being cost effective, this technique is a relatively simple fabrication procedure, especially for large periodic array that is suitable for mass production in industry [30].…”

Section: Introductionmentioning

confidence: 99%

Optically Transparent Tri-Wideband Mosaic Frequency Selective Surface with Low Cross-Polarisation

et al. 2022

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Acquiring an optically transparent feature on the wideband frequency selective surface (FSS), particularly for smart city applications (building window and transportation services) and vehicle windows, is a challenging task. Hence, this study assessed the performance of optically transparent mosaic frequency selective surfaces (MFSS) with a conductive metallic element unit cell that integrated Koch fractal and double hexagonal loop fabricated on a polycarbonate substrate. The opaque and transparent features of the MFSS were studied. While the study on opaque MFSS revealed the advantage of having wideband responses, the study on transparent MFSS was performed to determine the optical transparency application with wideband feature. To comprehend the MFSS design, the evolutionary influence of the unit cell on the performance of MFSS was investigated and discussed thoroughly in this paper. Both the opaque and transparent MFSS yielded wideband bandstop and bandpass responses with low cross-polarisation (−37 dB), whereas the angular stability was limited to only 25°. The transparent MFSS displayed high-level transparency exceeding 70%. Both the simulated and measured performance comparison exhibited good correlation for both opaque and transparent MFSS. The proposed transparent MFSS with wideband frequency response and low cross-polarisation features signified a promising filtering potential in multiple applications.

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Screen-Printed Dual-Band Flexible Frequency Selective Surface for 5G Applications

Cited by 6 publications

References 6 publications

Optically transparent and angularly stable broad‐stopband frequency selective surface for millimeter wave electromagnetic interference mitigation

Optically transparent and angularly stable broad‐stopband frequency selective surface for millimeter wave electromagnetic interference mitigation

Additively manufactured frequency selective surface for gain enhancement of sub‐6 GHzmonopole antenna

Optically Transparent Tri-Wideband Mosaic Frequency Selective Surface with Low Cross-Polarisation

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