Naslov
Some Considerations on Radiation Properties of Antennas Embedded into Low-permittivity Metamaterial

Autori
Bonefačić, Davor ; Hrabar, Silvio ; Kvakan, Dražen

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

Izvornik
Proceedings of the First International Congress on Advanced Electromagnetic Materials in Microwaves and and Optics / Bilotti, Filiberto ; Vegni, Lucio - Rim : Metamorphose VI AISBL, 2007, 181-184

Skup
First International Congress on Advanced Electromagnetic Materials in Microwaves and and Optics

Mjesto i datum
Rim, Italija, 2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
metamaterial; ENZ metamaterial; antenna; gain

Sažetak
Gain increase and radiation properties of a quarter wavelength monopole, an open rectangular waveguide and a rectangular horn antenna embedded into a low-permittivity wire-based metamaterial are studied. Measurement results confirm that metamaterial used for embedding of the antennas contributes to the increase of the antenna gain. Lower the antenna gain, the gain improvement achieved by the metamaterial slab is larger. The influence of dimensions and thickness of the metamaterial slab on the gain improvement and radiation patterns is investigated. The results show that for thin slabs the gain improvement weakly depends on the slab cross section area, while for thick slabs larger cross section allows significantly better focusing of the radiated waves.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA