Design and Analysis of Single Sided Modified Square Loop UWB Frequency Selective Surface

Katoch, Kanishka; Jaglan, Naveen; Gupta, Samir Dev

doi:10.1109/temc.2021.3063143

Cited by 32 publications

(17 citation statements)

References 29 publications

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“…The wideband response (FBW > 50%) was only achievable by using multilayer FSS. However, the innovation of FSS element enabled a wideband response to be achieved by using a single layer FSS with one layer metallic conductor [8,[24][25][26][27]. Although the available FSSs offer wider wideband bandstop frequency response (FBW > 80%) when compared to the proposed opaque MFSS (64.35%) and transparent MFSS (54.22%), the FSS structural element could not be applied for optical transparency application; see [8,[24][25][26][27].…”

Section: Comparative Studymentioning

confidence: 99%

“…However, the innovation of FSS element enabled a wideband response to be achieved by using a single layer FSS with one layer metallic conductor [8,[24][25][26][27]. Although the available FSSs offer wider wideband bandstop frequency response (FBW > 80%) when compared to the proposed opaque MFSS (64.35%) and transparent MFSS (54.22%), the FSS structural element could not be applied for optical transparency application; see [8,[24][25][26][27]. This is because the trace width of the metallic conductor of the previously proposed FSS structural element exceeded 0.8 mm, in which the metallic conductor occupied a wide area of the FSS unit cell and decreased the optical transparency of the FSS.…”

Section: Comparative Studymentioning

confidence: 99%

“…Meanwhile, multilayer FSS can yield promising results for BW enhancement [5,[17][18][19] and is insensitive to angular variation [20][21][22], which in turn increases the implementation cost along with the end product's size and thickness [23]. The literature [8,[24][25][26][27] depicts that wideband frequency response may also be achieved using single layer FSS-FSS with a single layer metallic conductor on a single layer substrate configuration. For instance, the modification of a square loop by adding narrow metallic strips at the four corners of the loop enhances the BW [24].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: Comparative Studymentioning

confidence: 99%

Section: Comparative Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Frequency-selective surfaces (FSSs) are periodically arranged thin structures that possess different characteristics like transmission, absorption, reflection, and so forth, depending upon the geometries and the incident electromagnetic (EM) wave characteristic. 1 As these surfaces exhibit various responses like bandpass or bandstop, they can be extensively used as spatial filters, [2][3][4] circuit analog absorbers, 5,6 and so on. In addition, multiple applications can be integrated into single structures by carefully designing the FSS geometries.…”

Section: Introductionmentioning

confidence: 99%

A frequency‐selective rasorber with wideband absorption and in‐band transmission using resistive ink

Patinavalasa

Banoth

Sharma

et al. 2022

Micro & Optical Tech Letters

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“…In the recent years, the bandpass frequency-selective surfaces have been studied intensively and applied widespread in antenna radomes owing to its spatial filtering properties. [1][2][3] Nevertheless, the detecting radars can obtain the reflection signals by using the weakness of the reflected EMWs in both sides of the passband, which poses a threat to the security of the targets. 4 Thereby, frequency-selective absorbers (FSRs) were proposed by scholars to overcome this issue and attracted widespread attention.…”

Section: Introductionmentioning

confidence: 99%

Hybrid frequency‐selective rasorber with wide passband based on spiral resonator

Liao

Liu

Shao

et al. 2022

Int J RF Mic Comp-Aid Eng

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A hybrid frequency-selective rasorber (HFSR) with low-frequency absorption and high-frequency polarization conversion based on rectangular spiral resonator (RSR) is designed, which implements a broad transmission band in the middle band, simultaneously. The HFSR is made up of three components, which are separated by two air gaps. A bandpass frequency-selective surface (FSS) is employed to realize a broad transmission window at the bottom layer, serving as a metal background of the top layer. The middle lossy layer is composed of the RSR and T-type metallic strips with four resistors, which is used to absorb the electromagnetic waves (EMWs) in the low-frequency band and provide a broadband transmission band. The top layer is formed by a pair of arrows to achieve the linear polarization conversion at the high-frequency band. A four-port equivalent circuit model (FP-ECM) with absorbing function is established to explain the physical principle of the proposed HFSR. The simulation results reveal that the 1 dB transmission band is obtained in 7.67-12.06 GHz with a 44.5% fractional bandwidth (FBW). Besides, the co-polarized reflection coefficients (S 11 < À10 dB) are achieved in 4.51-15.81 GHz with a 111.2% FBW. Moreover, the HFSR has a stable oblique incident angle of 30 under TE-and TM-polarized waves. In addition, the radar cross-section (RCS) of the HFSR can be reduced from 3.0 to 16.0 GHz, which has a 136.8% FBW. Finally, the archetype of the designed HFSR is fabricated and tested to validate the reliability of the simulation results.

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Design and Analysis of Single Sided Modified Square Loop UWB Frequency Selective Surface

Cited by 32 publications

References 29 publications

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

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

A frequency‐selective rasorber with wideband absorption and in‐band transmission using resistive ink

Hybrid frequency‐selective rasorber with wide passband based on spiral resonator

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