New compact six-band metamaterial absorber based on Closed Circular Ring Resonator (CCRR) for Radar applications

Ali, Hema O.; Al-Hindawi, Asaad M. Jassim; Abdulkarim, Yadgar I.; Karaaslan, Muharrem

doi:10.1016/j.optcom.2021.127457

Cited by 35 publications

(6 citation statements)

References 38 publications

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“…The absorption mechanism can also be understood through (Magnetic field) H-field and (Electric field) E-field analysis [60]. The inter-relationship of these features can be assumed through the Maxwell equation [61][62][63].…”

Section: E-field and H-field Distributionsmentioning

confidence: 99%

Quad-Band Polarization-Insensitive Square Split-Ring Resonator (SSRR) with an Inner Jerusalem Cross Metamaterial Absorber for Ku- and K-Band Sensing Applications

Hakim

Alam

Islam

et al. 2022

Sensors

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The development of metamaterial absorbers has become attractive for various fields of application, such as sensing, detectors, wireless communication, antenna design, emitters, spatial light modulators, etc. Multiband absorbers with polarization insensitivity have drawn significant attention in microwave absorption and sensing research. In this paper, we propose a quad-band polarization-insensitive metamaterial absorber (MMA) for Ku- and K-band applications. The proposed patch comprises two square split-ring resonators (SSRR), four microstrip lines, and an inner Jerusalem cross to generate four corresponding resonances at 12.62 GHz,14.12 GHz, 17.53 GHz, and 19.91 GHz with 97%, 99.51%, 99%, and 99.5% absorption, respectively. The complex values of permittivity, permeability, refractive index, and impedance of MMA were extracted and discussed. The absorption mechanism of the designed MMA was explored by impedance matching, equivalent circuit model, as well as magnetic field and electric field analysis. The overall patch has a rotational-symmetrical structure, which plays a crucial role in acquiring the polarization-insensitive property. The design also shows stable absorption for both transverse electric (TE) and transverse magnetic (TM) modes. Its near-unity absorption and excellent sensing performance make it a potential candidate for sensing applications.

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Section: E-field and H-field Distributionsmentioning

confidence: 99%

Quad-Band Polarization-Insensitive Square Split-Ring Resonator (SSRR) with an Inner Jerusalem Cross Metamaterial Absorber for Ku- and K-Band Sensing Applications

Hakim

Alam

Islam

et al. 2022

Sensors

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show abstract

“…This absorber achieved 100 % absorption at 8.3 GHz, 100% absorption at 9.2 GHz, 98% absorption at 9.88 GHz, 91% absorption at 10.66 GHz, and 98% absorption at 11.16 GHz, and 98% absorption at 11.85 GHz, respectively. Moreover, this structure is shown up to 90° polarization insensitivity response for TE and TM modes 14 . This structure exhibits polarization angle and incident angle insensitivity up to 60 0 .…”

Section: Introductionmentioning

confidence: 88%

Polarization insensitive split square ring resonator based epsilon-negative and near zero refractive index metamaterial for S, C, and X frequency bands satellite and radar communications

Hossain

Islam

Samsuzzaman

et al. 2022

Sci Rep

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This study has investigated the impact of inverse G-like shape resonators that exhibited epsilon negative (ENG) and near-zero refractive index (NZI) properties for multi-band wireless communications applications. The electrical measurement of structure is 0.118λ × 0.118λ × 0.021 λ, which is calculated at 3.94 GHz. FR-4 is used as a substrate layer, and the resonator is designed on it. This structure is manifested in the ENG and NZI characteristics within the frequency range of 3.8–4.17, 7.68–8.54, 10.67–11.36 GHz, and 4.07–4.15 and 8.29–8.37 GHz, respectively. This study also manifests the polarization insensitivity nature of 0°–90°, and the incident angle is investigated up to 60° for both TE and TM modes. The proposed structure achieves triple resonance at 3.94 GHz, 8.08 GHz, and 11.17 GHz, respectively, included in the S, C, and X frequency bands. The CST Microwave Studio 2019 software is conducted to design, develop, perform analysis, investigate electromagnetic properties, and extract effective medium parameters. The Advanced Design Software (ADS) is used to model the equivalent circuit of the unit cell. The simulated, measured, and ADS results verified the scattering parameter performance. The EMR value of the structure is 8.47, indicating the structure's compactness. The compact design with simplicity, ENG, and NZI properties make the proposed structure significant for microwave application, mainly to enhance the antenna bandwidth and gain filter design. ENG and NZI properties the operation frequency stability and efficiency for low earth orbit nanosatellite communications.

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“…It can be seen from the electric and magnetic field distributions in Figure 6 a,b that the EM coupling of the metasurface array is mainly contributed by the gap on both sides of the unit cell in the x -axis direction and the two branches in the y -axis direction. The resonance at higher resonant frequencies can be explained by the fundamental dipole mode [ 22 , 23 , 24 ]. Since the dipole resonance has a large local charge distribution on both sides of the junction, the electric field can excite an enhanced local electromagnetic field inside the junction.…”

Section: Metasurface Array Analysis and Designmentioning

confidence: 99%

Scalable, Dual-Band Metasurface Array for Electromagnetic Energy Harvesting and Wireless Power Transfer

et al. 2022

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A dual-band metasurface array is presented in this paper for electromagnetic (EM) energy harvesting in the Wi-Fi band and Ku band. The array consists of metasurface unit cells, rectifiers, and load resistors. The metasurface units within each column are interconnected to establish two channels of energy delivery, enabling the transmission and aggregation of incident power. At the terminals of two channels, a single series diode rectifier and a voltage doubler rectifier are integrated into them to rectify the energy in the Wi-Fi band and the Ku band, respectively. A 7 × 7 prototype of the metasurface array is fabricated and tested. The measured results in the anechoic chamber show that the RF-to-dc efficiencies of the prototype at 2.4 GHz and 12.6 GHz reach 64% and 55% accordingly, when the available incident power at the surface is 3 dBm and 14 dBm, respectively.

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New compact six-band metamaterial absorber based on Closed Circular Ring Resonator (CCRR) for Radar applications

Cited by 35 publications

References 38 publications

Quad-Band Polarization-Insensitive Square Split-Ring Resonator (SSRR) with an Inner Jerusalem Cross Metamaterial Absorber for Ku- and K-Band Sensing Applications

Quad-Band Polarization-Insensitive Square Split-Ring Resonator (SSRR) with an Inner Jerusalem Cross Metamaterial Absorber for Ku- and K-Band Sensing Applications

Polarization insensitive split square ring resonator based epsilon-negative and near zero refractive index metamaterial for S, C, and X frequency bands satellite and radar communications

Scalable, Dual-Band Metasurface Array for Electromagnetic Energy Harvesting and Wireless Power Transfer

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