Electromagnetic properties of polyurethane template-based carbon foams in Ka-band

Эндаумент фонд ТГУ!
Впиши своё имя в историю университета
- Сделать пожертвование -

Add to "Quick Collection"

Description	Size	Format
Electromagnetic properties of polyurethane template-based carbon foams in Ka-band	896 KB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1088/0031-8949/90/9/094019

Title: Electromagnetic properties of polyurethane template-based carbon foams in Ka-band
Creator: Bychanok, Dmitry S.
|
Piasotski, Kiryl
|
Paddubskaya, Alesya G
|
Voronovich, S.
|
Kuzhir, Polina P.
|
Baturkin, S. A.
|
Klochkov, A. Ya.
|
Korovin, Eugeny Yu.
|
Letellier, M.
|
Plyushch, Artem O.
|
Schaefer, S.
|
Szczurek, Andrzej
|
Fierro, Vanessa
|
Celzard, Alain
Date: 2015
DOI: 10.1088/0031-8949/90/9/094019
Description: The electromagnetic (EM) properties of polyurethane template-based reticulated carbon foams were investigated in the 26–37 GHz microwave frequency range (Ka-band). It was experimentally proved that carbon foams of a thickness of 2 mm and a density of 22–55 mg cm−3 are almost not transparent to microwave radiation, and this is especially true for the densest ones. Depending on bulk density, the EM response of carbon foams in the microwave region can be mainly accounted for by either reflection or absorption. EM shielding efficiency of more dilute samples is due to absorption mechanisms, whereas denser foams provide up to 80% reflection of EM signals. EM properties of carbon foams in the Ka-band can be accurately predicted by a very simple model based on Fresnel formulae developed in this communication.