Angle of Incidence and Polarization Insensitive Ultra-Thin Ultra Wide-Band Metamaterial Absorber based on Novel Non-Linearity in Unit Cell Design
Abstract A new design of an ultra wide-band metamaterial absorber (MMA), with appreciable high absorptance insensitive to angle of incidence and polarization angle is presented in the manuscript. The MMA structure consists of three concentric rings with non-linear variation in the spacing and the th...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
2021-09-01
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| Series: | Journal of Microwaves, Optoelectronics and Electromagnetic Applications |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742021000300556&tlng=en |
| _version_ | 1798019558304382976 |
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| author | Alkesh Agrawal Mukul Misra |
| author_facet | Alkesh Agrawal Mukul Misra |
| author_sort | Alkesh Agrawal |
| collection | DOAJ |
| description | Abstract A new design of an ultra wide-band metamaterial absorber (MMA), with appreciable high absorptance insensitive to angle of incidence and polarization angle is presented in the manuscript. The MMA structure consists of three concentric rings with non-linear variation in the spacing and the thickness of the rings is controlled by a single parameter. The idea of utilizing nonlinear variation based unit cell resulted in high absorptance ultra wide-band frequency spectrum in X -band. The proposed MMA design is three layered structure. The metamaterial nature of the proposed device is explained by simulated values of Z eff( f ), μ eff( f ), ε eff( f ), and η eff( f ). The FWHM bandwidth of proposed MMA is 6.32 GHz (7.36 GHz-13.68 GHz). The fabricated MMA is ultra-thin with thickness of λo/15.3 at centre frequency 9.8 GHz. The experimental results show absorptance greater than 99% at 7.9 GHz and 11.7 GHz, covering entire X -band range makes this MMA appropriate for providing stealth technology for defense equipments by reducing radar cross section (RCS). |
| first_indexed | 2024-04-11T16:42:32Z |
| format | Article |
| id | doaj.art-57d21b615ea84f458d8cdc028f66a4ff |
| institution | Directory Open Access Journal |
| issn | 2179-1074 |
| language | English |
| last_indexed | 2024-04-11T16:42:32Z |
| publishDate | 2021-09-01 |
| publisher | Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo |
| record_format | Article |
| series | Journal of Microwaves, Optoelectronics and Electromagnetic Applications |
| spelling | doaj.art-57d21b615ea84f458d8cdc028f66a4ff2022-12-22T04:13:38ZengSociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de EletromagnetismoJournal of Microwaves, Optoelectronics and Electromagnetic Applications2179-10742021-09-0120355656910.1590/2179-10742021v20i31207Angle of Incidence and Polarization Insensitive Ultra-Thin Ultra Wide-Band Metamaterial Absorber based on Novel Non-Linearity in Unit Cell DesignAlkesh Agrawalhttps://orcid.org/0000-0001-6326-7560Mukul Misrahttps://orcid.org/0000-0002-6854-4683Abstract A new design of an ultra wide-band metamaterial absorber (MMA), with appreciable high absorptance insensitive to angle of incidence and polarization angle is presented in the manuscript. The MMA structure consists of three concentric rings with non-linear variation in the spacing and the thickness of the rings is controlled by a single parameter. The idea of utilizing nonlinear variation based unit cell resulted in high absorptance ultra wide-band frequency spectrum in X -band. The proposed MMA design is three layered structure. The metamaterial nature of the proposed device is explained by simulated values of Z eff( f ), μ eff( f ), ε eff( f ), and η eff( f ). The FWHM bandwidth of proposed MMA is 6.32 GHz (7.36 GHz-13.68 GHz). The fabricated MMA is ultra-thin with thickness of λo/15.3 at centre frequency 9.8 GHz. The experimental results show absorptance greater than 99% at 7.9 GHz and 11.7 GHz, covering entire X -band range makes this MMA appropriate for providing stealth technology for defense equipments by reducing radar cross section (RCS).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742021000300556&tlng=enabsorptancemicrowave absorberreflectanceresonatorwideband |
| spellingShingle | Alkesh Agrawal Mukul Misra Angle of Incidence and Polarization Insensitive Ultra-Thin Ultra Wide-Band Metamaterial Absorber based on Novel Non-Linearity in Unit Cell Design Journal of Microwaves, Optoelectronics and Electromagnetic Applications absorptance microwave absorber reflectance resonator wideband |
| title | Angle of Incidence and Polarization Insensitive Ultra-Thin Ultra Wide-Band Metamaterial Absorber based on Novel Non-Linearity in Unit Cell Design |
| title_full | Angle of Incidence and Polarization Insensitive Ultra-Thin Ultra Wide-Band Metamaterial Absorber based on Novel Non-Linearity in Unit Cell Design |
| title_fullStr | Angle of Incidence and Polarization Insensitive Ultra-Thin Ultra Wide-Band Metamaterial Absorber based on Novel Non-Linearity in Unit Cell Design |
| title_full_unstemmed | Angle of Incidence and Polarization Insensitive Ultra-Thin Ultra Wide-Band Metamaterial Absorber based on Novel Non-Linearity in Unit Cell Design |
| title_short | Angle of Incidence and Polarization Insensitive Ultra-Thin Ultra Wide-Band Metamaterial Absorber based on Novel Non-Linearity in Unit Cell Design |
| title_sort | angle of incidence and polarization insensitive ultra thin ultra wide band metamaterial absorber based on novel non linearity in unit cell design |
| topic | absorptance microwave absorber reflectance resonator wideband |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742021000300556&tlng=en |
| work_keys_str_mv | AT alkeshagrawal angleofincidenceandpolarizationinsensitiveultrathinultrawidebandmetamaterialabsorberbasedonnovelnonlinearityinunitcelldesign AT mukulmisra angleofincidenceandpolarizationinsensitiveultrathinultrawidebandmetamaterialabsorberbasedonnovelnonlinearityinunitcelldesign |