Naslov
Scanning Leaky-wave Antenna based on a Waveguide filled with ENG Metamaterial

Autori
Hrabar, Silvio ; Jankovic, Gordan

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

Izvornik
Proceedings of the 2006's Mediterranen Electrotehnical Conference / Sandoval, Francisco - Málaga : Institute of Electrical and Electronics Engineers (IEEE), 2006, 280-283

Skup
2006 IEEE Mediterraneean Electrotehnical Conference

Mjesto i datum
Málaga, Španjolska, 16.05.2006. - 19.05.2006

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
leaky-wave; antenna; metamaterial; waveguide

Sažetak
Recently, it has been shown that a waveguide filled with an uniaxial thin-wire-based ENG filling supports low-loss backward propagation below a cut-off frequency of the fundamental TM11 mode. If the plasma frequency of an ENG filling is chosen to be equal to the cut-off frequency of TM11 mode, the waveguide will support three different modes of propagation: the backward-wave mode, the mode with zero propagation factor (but with non-zero group velocity) and the forward-wave mode. This paper reports preliminary experimental results of use of such a waveguide as a leaky-wave antenna with back-fire to end-fire scanning capabilities. The experimental antenna based on a slotted waveguide with thin-wire-based ENG filling, operating in 10 GHz band, was successfully designed, manufactured and tested. Preliminary results revealed scanning angle of ± ; 60 degrees from broadside for the slotted waveguide with six unit cells.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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