E-viri
Recenzirano
-
Wu, Yaoyao; Liu, Xiongfei; Wang, Zhuang; Ma, Guowei
Journal of magnetism and magnetic materials, 08/2023, Letnik: 580Journal Article
•This study proposed novel two-layered periodic stepped absorbing structure (PSAS)•PSAS was composed of a mixture of Nano-Fe3O4 magnetic fluid and a resin geopolymer.•Absorption exceeded 90% at frequencies from 2 GHz to 18 GHz in 16 GHz bandwidth.•Performance attributed to multiple λ/4 resonances and edge diffraction effects. It is challenging to achieve high-strength absorption and effectively broaden the absorbing bandwidth when using conventional flat microwave-absorbing cementitious materials. To address this challenge and achieve excellent microwave-absorptive performance, this study proposes a novel two-layered periodic stepped absorbing structure (PSAS) composed of a mixture of nano-Fe3O4 magnetic fluid and a resin geopolymer. Additionally, the incident angle-dependent absorption performance, the impact of geometrical parameters, and the shape of the unit cell were investigated. The results demonstrate that the absorption of the designed metamaterial absorber exceeds 90% in the total frequency range of 2–18 GHz. A mean reflection value of −18.3 dB was obtained in this study. The outstanding absorption performance of PSAS results from the cooperative effect of multiple λ/4 resonances and edge diffraction effects, which improve the impedance matching to the level of the free space in a broad frequency domain. Combining the effect of electromagnetic field regulation with metamaterial structure, the ultra-broadband absorption can be significantly enhanced by adjusting the geometrical parameters of the unit cell for absorption resonance.
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Vnos na polico
Trajna povezava
- URL:
Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
---|
Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
---|
Vir: Osebne bibliografije
in: SICRIS
To gradivo vam je dostopno v celotnem besedilu. Če kljub temu želite naročiti gradivo, kliknite gumb Nadaljuj.