Design of miniaturize flexible wideband frequency selective surface for electromagnetic shielding application

Ghosh, Jeet; Dutta, Rahul; Sarkhel, Abhishek; Abbasi, Qammer H.

doi:10.1080/17455030.2022.2121442

Cited by 10 publications

(4 citation statements)

References 32 publications

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“…Bending analysis is required to justify the structure performance with bending angles [24,25] and to talk about the flexibility of the dielectric material. Due to the small unit cell size and similar responses between the unit cell and 2 × 2 array-sized FSS, we have considered a 2 × 2 fabricated model for the bending analysis of the structure.…”

Section: Bending Analysis For the Proposed Designmentioning

confidence: 99%

Flexible Metamaterial-Based Frequency Selective Surface with Square and Circular Split Ring Resonators Combinations for X-Band Applications

et al. 2023

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To meet the demand for modern communication technology, the development of satellite communications has been consistently investigated. In this article, a rectangle-type SRR is attached to circular-type SRR for obtaining two frequencies in X-band operation. The designed structure exhibits negative metamaterial properties (Epsilon, mu and refractive index are negative) and the design was fabricated on a polyimide dielectric material with a 10 × 10 mm2 size. The polyimide dielectric material is chosen with a thickness of 0.1 mm and a dielectric constant of 0.0027. The proposed unit cell is designed and simulated by using one of the numerical simulation tools, CSTMW studio, in which the frequency limit is chosen from 7 to 12 GHz. From the results, we can observe that the proposed design resonates at two X-band frequencies at 9.84 GHz and 11.46 GHz and the measurement results of the proposed design resonate at 9.81 GHz and 11.61 GHz. It is worth noting that the simulation and measurement findings both obtain the same X-band frequencies, with only a minor difference in the frequency values. Thus, the recommended design is very much useful for X-band applications.

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Section: Bending Analysis For the Proposed Designmentioning

confidence: 99%

Flexible Metamaterial-Based Frequency Selective Surface with Square and Circular Split Ring Resonators Combinations for X-Band Applications

et al. 2023

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“…FSS functions as a spatial filter for electromagnetic waves and provides selectivity in frequency, angle of incidence and polarization of the incident waves [1]. The frequency selective characteristics of FSS allow it to be used in a wide range of commercial and military applications [2][3][4][5], EM shields (band stop/band pass filters) [6][7][8][9][10][11][12], radome design [13][14][15], RCS reduction [16,17], electromagnetic band gap materials [18,19] and absorbers [20][21][22]. Nevertheless, the FSS is widely employed in many applications.…”

Section: Introductionmentioning

confidence: 99%

Design of 2.5-D miniaturized frequency selective surface with enhanced oblique stability

Ul Abidin,

Cao,

Shah

et al. 2024

Phys. Scr.

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This paper presents a miniaturized 2.5-D frequency selective surface (FSS) that exhibits a band stop response at frequency of 1.5 GHz. In the unit cell, the meander patterns on both sides of the substrate are connected in series by four vias. Moreover, the meandered pattern in each quadrant is also connected with one of the meander patterns of the adjacent unit cell. In this manner, a 2.5-D closed loop is created with large perimeter. The enlarged perimeter amplifies the effective inductance and leads to a decrease in both the resonant frequency and the dimensions of unit cell. Subsequently, the proposed FSS demonstrates excellent miniaturization with an overall size of 0.038 λ0 × 0.038 λ0. Moreover, the frequency response is highly stable up to 86° for both TE and TM polarization. The resonance mechanism of the designed FSS is explicated through distribution of surface current and electric field. The testing board of the proposed FSS has been fabricated for the verification of the design. The measured frequency response of the prototype are congruent with the simulation results. The distinguished features of the constructed structure are enhanced angular stability, miniaturized unit cell, low profile, simple geometry and easy fabrication.

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“…Te FSS with a large unit cell size exhibiting band-stop characteristics is given in [23]. Te FSS unit cells given in [24][25][26][27][28] were designed using a complex design using a multi-layer confguration, which is not a costefective solution.…”

Section: Introductionmentioning

confidence: 99%

A Novel Ultra-Miniaturized Angularly Stable Frequency Selective Surface for L-Band Shielding Applications

Kanagasabai,

Ramadoss,

Viswanathan

et al. 2024

International Journal of Antennas and Propagation

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This paper presents a novel ultraminiaturized frequency selective surface (FSS) for L-band electromagnetic shielding applications. A basic square loop incorporated with folded arms in the top layer constructs the single-layer FSS design. Band-stop characteristics for the entire L-band operating frequency ranging from 1 GHz to 2 GHz are offered by the proposed design. An ultraminiaturized profile of 0.028λο × 0.028λο is achieved by the designed FSS, where λο corresponds to the lowest operating frequency, achieving at least 32.1% miniaturization when compared to the state-of-the-art FSS designs in the literature. Polarization insensitivity with a peak shielding effectiveness of 45.4 dB is manifested by the rotational symmetry of the proposed design. The proposed FSS exhibits excellent angular stability performance up to 80° with a frequency deviation of less than 1%. The equivalent circuit model helps to understand the working principle of the proposed FSS. The experimental results of the designed FSS prototype agree well with the simulation results. Hence, the proposed spatial filter is a suitable candidate for enhancing security in wireless communication at the carrier frequencies of GPS systems.

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Design of miniaturize flexible wideband frequency selective surface for electromagnetic shielding application

Cited by 10 publications

References 32 publications

Flexible Metamaterial-Based Frequency Selective Surface with Square and Circular Split Ring Resonators Combinations for X-Band Applications

Flexible Metamaterial-Based Frequency Selective Surface with Square and Circular Split Ring Resonators Combinations for X-Band Applications

Design of 2.5-D miniaturized frequency selective surface with enhanced oblique stability

A Novel Ultra-Miniaturized Angularly Stable Frequency Selective Surface for L-Band Shielding Applications

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