An Ultrathin Compact Polarization-Sensitive Triple-band Microwave Metamaterial Absorber

Jain, P. L.; Singh, Arvind; Pandey, Janmejay K.; Bansal, Shonak; Sardana, Neha; Kumar, Sanjeev; Gupta, Neena; Singh, Arun K.

doi:10.1007/s11664-020-08680-z

Cited by 40 publications

(31 citation statements)

References 27 publications

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“…Metasurfaces can offer another way to reduce RCS with their polarized rotation properties 16 which is different from absorber. [17][18][19] In earlier studies, passive polarized rotating structures are realized including narrowband and broadband. In a general way, the reflective polarized rotating designs are realized by a metal ground and an oblique metal patch of 45 , 20,21 which the surface current is used to analyze the structure, but, it is not enough.…”

Section: Introductionmentioning

confidence: 99%

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Band‐notched frequency‐selective absorber with linear polarization rotation function

Jin

Kong

Wang

et al. 2022

Int J RF Mic Comp-Aid Eng

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This article presents a novel band‐notched frequency‐selective absorber (BFSA) with linear polarization rotation function in‐band and absorption out‐of‐band. When used as an antenna reflector, the BFSA can not only reduce RCS outside of the antenna's working band, but also reduce co‐polarized RCS within the working band and improve cross‐polarized reflection. The BFSA realizes −0.41 dB linear polarization‐rotating reflection at 4.5 GHz. In the upper and lower bands, the BFSA realizes a broad absorption function from 2.2 GHz to 4.1 GHz and 5.03 GHz to 6.5 GHz. The fractional bandwidth of linear co‐polarization reflection is 98.8% with 10 dB reflection reduction. The experimental measurements are conducted to validate the polarization conversion of the band‐notched absorbers, and good agreement between theory and measurement results is observed.

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Section: Introductionmentioning

confidence: 99%

“…RCS is a critical factor in evaluating stealth performance. Metasurfaces can offer another way to reduce RCS with their polarized rotation properties 16 which is different from absorber 17–19 . In earlier studies, passive polarized rotating structures are realized including narrowband and broadband.…”

Section: Introductionmentioning

confidence: 99%

Band‐notched frequency‐selective absorber with linear polarization rotation function

Jin

Kong

Wang

et al. 2022

Int J RF Mic Comp-Aid Eng

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“…7 Kumari et al 8 presented the dual-band microwave MMA for X band applications. Jain et al 9 proposed the triple-band microwave MMA for S and X band applications. Kaur et al investigated the angle-independent triple-band MMA for S, X, and Ku band applications.…”

Section: Introductionmentioning

confidence: 99%

An Ultrathin Microwave Metamaterial Absorber for C, X, and Ku Band Applications

Elakkiya

Radha

Sreeja

et al. 2021

J. Electron. Mater.

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A five-band polarization-insensitive microwave metamaterial absorber (MMA) is discussed in this paper. The unit cell of the proposed MMA is composed of the top patch and a ground metallic plane, both separated by an FR4 dielectric substrate having an ultrathin thickness of 0.014 λ. The proposed absorber structure offers five different absorption peaks at 5.4 GHz (C band), 8.7 GHz (X band), 14.53 GHz, 15.25 GHz, and 15.68 GHz (Ku band) with the absorptivity of 98%, 86%, 99%, 99.8%, and 99.9%, respectively, for both transverse electric (TE) and transverse magnetic (TM) modes. The analysis of the electric field, magnetic field, polarization, and angle independency has been performed to understand the absorption mechanism easily. The sensing behavior of the structure is analyzed by adding the analyte over the top metal layer. The microwave MMA has been fabricated and measured. The fabrication results agree with the simulation results. The design of the proposed absorber is expected to find application in explosive detection, sensing, defense, and airborne radar applications.

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“…These absorber structures can offer advantages such as flexibility, low profile, easy fabrication and compactness. Because of these features, the absorbers have a wide research area such as emitters (Liu et al, 2011) sensors (Jain et al, 2021), energy harvesting (Bakir et al, 2016), amplitude modulation [5], switching (Ekmekci & Demir, 2015), EMI/EMC (Mishra et al, 2018;Genikala & Ghosh, 2020) and WiMAX/WLAN application (Sen et al, 2016;Sen & Ghosh, 2019). The metametarial structures whose advantages have been described above have the disadvantage of having a narrow absorbent bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Frequency Absorber Based on Split-Ring Resonators for WiMAX and WLAN Bands

Çinar¹,

Basaran²

2021

European Journal of Science and Technology

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In this paper, a dual-band compact absorber design based on split-ring resonator for WiMAX and WLAN bands is presented. Top plate of a unit cell in the proposed design is composed of three concentric circular split ring (SR) elements covers an area of π×13.42 mm 2 and placed on a FR4 substrate with 1.5 mm thickness, dielectric constant of 4.3 and loss tangent of 0.025. Also, six miniature metallic loadings are appropriately inserted between the SR elements. The back side of the substrate is covered full ground plane for shielding transmission from port 1 to port 2. In the design, SR elements are primary resonator of the proposed absorber and provide a dual band of absorption at the respective frequencies. The metallic loadings are used for fine frequency tuning where the absorption peaks occur. Hence, the absorption frequency of the design can be easily tuned by means of sliding the loadings between the rings without changing any design parameters. The proposed compact absorber excited by incident electromagnetic wave provides 0.92 and 0.97 absorption peaks at 3.52 GHz WiMAX and 5.16 GHz WLAN bands, respectively. The design and analysis of the absorber are performed by means of CST Microwave Studio based on frequency domain solver. In this paper, the absorber design with novel configuration is introduced in detail and its corresponding electric field distributions and absorption characteristics at the related bands are presented. Also, the proposed SRR-based absorber design is compared with the previously reported dual or multi bands absorbers in terms of dimensions, resonance frequencies and number of bands.

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An Ultrathin Compact Polarization-Sensitive Triple-band Microwave Metamaterial Absorber

Cited by 40 publications

References 27 publications

Band‐notched frequency‐selective absorber with linear polarization rotation function

Band‐notched frequency‐selective absorber with linear polarization rotation function

An Ultrathin Microwave Metamaterial Absorber for C, X, and Ku Band Applications

Dual-Band Frequency Absorber Based on Split-Ring Resonators for WiMAX and WLAN Bands

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