A Novel Wideband Frequency Selective Surface for Millimeter-Wave Applications

Kesavan, Arun; Karimian, Reza; Denidni, Tayeb A.

doi:10.1109/lawp.2016.2528221

Cited by 49 publications

(26 citation statements)

References 12 publications

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“…Despite occupying a larger space, these configurations result in a smaller attenuation bandwidth rather than the design proposed in the present study. The designed configurations in [16,18,22,24,25,28,29] have a reasonable thickness; however, their rejected bandwidths are significantly lower than the operating band of the PMC shield in this work. In addition to maintaining a reasonably thick profile, [19,20,23] offer a broad attenuation band.…”

Section: Ultra-broadband Pmc Rf Shield and Its Principal Mechanismmentioning

confidence: 92%

“…Mighani and Mallahzadeh designed an FSS platform with the ability of EM shielding whose measurement results showed that the proposed structure had an SE better than 20 dB in 5.1-13.3 GHz frequency range [22]. Using single or multilayer structures, several stop/absorption bands with different operating bandwidths have been achieved [23][24][25][26][27][28][29][30]. Nevertheless, in addition to using complicated geometries, one of the limitations of the restricted shielding bandwidth, angular dependency, not being tunable, thick and heavy profiles circumscribe their practical applications.…”

Section: Introductionmentioning

confidence: 99%

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Ultra-Thin Tunable Plasma-Metasurface Composites for Extremely Broadband Electromagnetic Shielding Applications

Abdolali¹,

Rajabalipanah²,

Rajabalipanah³

2018

PIER C

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Abstract-For the first time, the concept of combinational use of subwavelength metasurfaces and plasma media is introduced in this paper for being utilized in practical radio frequency (RF) shielding applications. Using an equivalent circuit model, it is demonstrated that the simultaneous use of the lossy characteristic and special dispersion of plasma in low-frequency regime and the transmission zeros provided by spatially homogeneous metasurfaces in the upper frequency band results in superior shielding performances. The designed coating layer has an ultra-thin profile while exhibiting a super wide reject band ranging from 1 to 20 GHz (|S 21 | < −10 dB). A fair comparison is also performed to elucidate that the proposed plasma-metasurface composite (PMC) shield outperforms the previously reported RF shielding FSSs in both bandwidth and thickness. The numerical results show that while maintaining a low profile, the shielding bandwidth of the designed PMC can be set to surprisingly include all the UHF, L, S, C, X, Ku, and K bands. Moreover, the designed coating layer provides a stable and polarization-insensitive reject band for different incident wave angles up to 45 • . These superior performances, as well as the shielding tunability enabled by plasma, confirm the promising capabilities of PMC structures for various applications.

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Section: Ultra-broadband Pmc Rf Shield and Its Principal Mechanismmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Ultra-Thin Tunable Plasma-Metasurface Composites for Extremely Broadband Electromagnetic Shielding Applications

Abdolali¹,

Rajabalipanah²,

Rajabalipanah³

2018

PIER C

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show abstract

“…Particularly, the physical size of constituent elements and unit cells are required to be smaller than the half a wavelength for the improved frequency and angular stability. For an effort of reducing the unit‐cell size needed for operation at a given frequency, new element designs were proposed through convoluting the conductor or wrapping it in a spiral configuration in microwaves and millimeter waves . Further improvement was made by the interweaving of adjacent convoluted elements of crossed dipoles to create reductions of operating frequencies of almost 15 times for single layer surfaces .…”

Section: Introductionmentioning

confidence: 99%

“…For an effort of reducing the unit-cell size needed for operation at a given frequency, new element designs were proposed through convoluting the conductor or wrapping it in a spiral configuration in microwaves [8][9][10] and millimeter waves. [11][12][13] Further improvement was made by the interweaving of adjacent convoluted elements of crossed dipoles to create reductions of operating frequencies of almost 15 times for single layer surfaces. 14 A planar array of entwined quadrifilar spirals enabled a 40% reduction of the unit cell size over that for the interwoven convoluted crossed dipoles.…”

Section: Introductionmentioning

confidence: 99%

High‐capacitive frequency selective surfaces of folded spiral conductor arrays

Liu

Kim

2019

Micro & Optical Tech Letters

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A high‐capacitive frequency selective surface (FSS) is proposed with the aim of achieving a small array periodicity composed of four folded arms spiral conductors with 90° rotation symmetry. The electromagnetic response of the proposed FSS can be analyzed by an equivalent circuit model where the circuit parameters (L, C) are dependent on the geometries of conductors. A high value of capacitance was predicted arising from the inter‐plane and intra‐plane couplings between the folded spiral conductors distributed over large effective segments with a small gap spacing. However, the value of the total equivalent inductance decreases due to the parallel circuit connection of the shunted inductance of each arm. Parametric analysis on the geometrical effect was also conducted to validate the applied equivalent circuit model.

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“…Compared with single-layer structure, a multi-layer FSS which has a smaller inter-element spacing was proposed in [10] to provide an UWB bandwidth with the incident angle in the range from 0 • to 30 • . The structure in [11] utilized the curved slot element to reduce the inter-element spacing, hence its wideband response was capable of remaining stable as the incident angle increases from 0 • to 40 • . In Ref.…”

Section: Introductionmentioning

confidence: 99%

Wide-Angle Frequency Selective Surface With Ultra-Wideband Response for Aircraft Stealth Designs

Hua¹,

Liu²,

He³

et al. 2017

PIER C

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Abstract-An ultra-wideband frequency selective surface (FSS) for wide incident angles is proposed. Its −3 dB bandwidth is from 3.49 GHz to 12.13 GHz, and the fractional bandwidth exceeds 110%. Some parasitic patches are appended to reduce the deviation of resonant frequency under wide-angle incidence. The proposed FSS exhibits an improved stability when the incident angles are in the range from 0 • to 60 • . The relative simulated and measured results are provided to validate its effectiveness.

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A Novel Wideband Frequency Selective Surface for Millimeter-Wave Applications

Cited by 49 publications

References 12 publications

Ultra-Thin Tunable Plasma-Metasurface Composites for Extremely Broadband Electromagnetic Shielding Applications

Ultra-Thin Tunable Plasma-Metasurface Composites for Extremely Broadband Electromagnetic Shielding Applications

High‐capacitive frequency selective surfaces of folded spiral conductor arrays

Wide-Angle Frequency Selective Surface With Ultra-Wideband Response for Aircraft Stealth Designs

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