Naslov
RF INVISIBILITY USING METAMATERIALS: HARRY POTTER’ S CLOAK OR THE EMPEROR’ S NEW CLOTHES

Autori
Kildal, Per-Simon ; Kishk, Ahmed ; Šipuš, Zvonimir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
IEEE Antennas and Propagation and URSI International Symposium Digest 2007 Honolulu / Iskander, Magdy F. - Honolulu (HI), 2007

Skup
IEEE Antennas and Propagation and URSI International Symposium 2007

Mjesto i datum
Honolulu (HI), Sjedinjene Američke Države, 10.06.2007. - 15.06.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
rf invisibility; metamaterials; hard surfaces

Sažetak
Recently the authors of an article [1] in Sciencexpress claim to have “ the first practical realization” of a cloak of invisibility that works over “ a narrow frequency band” . However, they do neither quantify the invisibility nor refer to other known and much simpler cloaks, which can work over a significant 20% bandwidth [2]. Also, the realization in [1] is limited to a single vertical polarization, which makes it inferior compared to existing realizations, which work for arbitrary and dual polarization. The purpose of the present paper is to explain the differences between the two cloaking approaches, by comparing performance of ideal and realized cloaks, in to find out if cloaking is a step towards realizing Harry Potter’ s cloak at RF, or is better described as the “ Emperor’ s new clothes” in the fairytale of H. C. Andersen from 1837. Media has already used the former Harry Potter term to describe their performance.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA