Single-layer angularly-stable bandpass frequency-selective surface with interdigital resonator

Ma, Xiaoqian; Yunzhe, Liu; Wan, Guobin; Pan, Aigang

doi:10.23919/jsee.2021.000047

Cited by 6 publications

(4 citation statements)

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“…The calculated shielding effectiveness (SE) is greater than those presented in Xin et al 18 and Ma et al 19 while comparable with those from Sampath et al 10,13,14 Though Qu et al 16 offer higher shielding effectiveness, the unit cell is 89.4% larger than the proposed FSS element. The prototype FSS offers good angular stability and excellent polarization stability with frequency deviation for angles up to 60° in TE and TM polarization modes unlike the FSS described in Chou et al 15 and Xin et al 18 The proposed FSS is a dual‐layer single substrate solution whereas Zhao et al 12 reported a three‐layer dual‐substrate solution to demonstrate miniaturization. Hence, it can be concluded that the proposed FSS has a simple geometry with high reproducibility and low manufacturing cost making it viable.…”

Section: Resultssupporting

confidence: 73%

“…In addition to miniaturization, the bandwidth performance and the shielding effective performance are better than the research reported in the literature. The proposed FSS offers good | S 21 | bandwidth more than those presented in other studies 3,7,10,12,14,18,19 . The calculated shielding effectiveness (SE) is greater than those presented in Xin et al 18 and Ma et al 19 while comparable with those from Sampath et al 10,13,14 Though Qu et al 16 offer higher shielding effectiveness, the unit cell is 89.4% larger than the proposed FSS element.…”

Section: Resultsmentioning

confidence: 47%

“…The Ka ‐band miniaturized FSS in Chou and Ke 15 and the FSS for shielding 5G frequencies (2.6 GHz) reported in Qu et al 16 signify the importance of FSS for satellite communications and system‐level packaging, respectively. A few other interesting design solutions to obtain miniaturization in the FSS unit cells are described in other studies 17–22 …”

Section: Introductionmentioning

confidence: 99%

“…A few other interesting design solutions to obtain miniaturization in the FSS unit cells are described in other studies. [17][18][19][20][21][22] This paper reports the design of a novel ultra-miniaturized FSS with polarization-insensitive and angularly stable characteristics. The proposed FSS element has the smallest footprint of 0.026λ o Â 0.026λ o with a minimum via structures unlike the FSS screens reported in other studies.…”

mentioning

confidence: 99%

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Miniaturized frequency‐selective surface with reduced number of metallic vias for electromagnetic shielding

Andi,

G. P.

2023

Int J Communication

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SummaryA miniaturized frequency‐selective surface (FSS) for radio frequency (RF) filtering applications is reported in this paper. The proposed FSS is designed to operate with band stop property at 1.57 GHz. The FSS element is developed using highly convoluted lines running on either side of the substrate interconnected using via lines. This specific arrangement increases the electrical length of the resonator without increasing the physical size. Furthermore, the stability towards polarization variation and independence to different angles of incidence are other major concerns in the design of FSS. The FSS unit cell has rotational symmetry thereby providing polarization‐independent operation. The angular independence is tested for various incidence angles, and the results are presented. The performance of the FSS is validated in real time, and the results are presented. The maximum realized transmission loss is 27 dB at 1.57 GHz, and the attenuation bandwidth with reference 10 dB shielding level is estimated to be 400 MHz centered around 1.57 GHz. The convolution technique along with shorting vias has offered this extreme miniaturization ranging from 7% to 95.7% with reference to most of the FSS reported for L‐band services such as radio, telecommunications, military, and aircraft surveillance.

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Section: Resultssupporting

confidence: 73%

Section: Resultsmentioning

confidence: 47%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Miniaturized frequency‐selective surface with reduced number of metallic vias for electromagnetic shielding

Andi,

G. P.

2023

Int J Communication

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Ultra‐miniaturized and angularly stable symmetric polarization insensitive frequency selective surface for electromagnetic shielding

Mondal,

Bag,

Murmu

2024

Int J Communication

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SummaryThis research work presents a miniaturized enhanced angular and polarization stability frequency selective surface (FSS) structure at 660 MHz for electromagnetic (EM) shielding of 4G LTE networks. The vias and spiral‐shaped subunit cells are combined to extend the electrical path length corresponding to the lower resonant frequency. The symmetric structure is considered to improve polarization and angular stability. Two symmetric metallic layers are etched on both sides of the FR4 substrate with thickness and relative permittivity . Four steps are adopted to improve miniaturization and stability (angular and polarization). The dimension of the unit cell is . The figure of merit is also improved to , where is the largest free space wavelength and P is the periodicity of the proposed structure. The proposed band‐stop FSS is more angularly stable as a figure of merit for various incidence angles under transverse electric (TE) and transverse magnetic (TM) polarizations. Simulation and measurement have been done to confirm the polarization insensitivity and maximum angular stability of 80°.

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Design of Conformal X-Band Bandpass FSS for SATCOM Applications

Elango,

Kannan

2023

2023 Innovations in Power and Advanced Computing Technologies (I-Pact)

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Single-layer angularly-stable bandpass frequency-selective surface with interdigital resonator

Cited by 6 publications

References 0 publications

Miniaturized frequency‐selective surface with reduced number of metallic vias for electromagnetic shielding

Miniaturized frequency‐selective surface with reduced number of metallic vias for electromagnetic shielding

Ultra‐miniaturized and angularly stable symmetric polarization insensitive frequency selective surface for electromagnetic shielding

Design of Conformal X-Band Bandpass FSS for SATCOM Applications

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