Naslov
Transmission lines emulating moving media

Autori
Vehmas, Joni ; Hrabar, Silvio ; Tretyakov, Sergei

Izvornik
New journal of physics (1367-2630) 16 (2014); 093065-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
moving medium; transmission line; metamaterial

Sažetak
In this paper, we show how the electromagnetic phenomena in moving magnetodielectric media can be emulated using arti cial composite structures at rest. In particular, we introduce nonreciprocal periodically loaded transmission lines which support waves obeying the same rules as plane electromagnetic waves in moving media. Because the actual physical structure is at rest, in these transmission lines there are no fundamental limitations on the velocity values, which may take values larger than the speed of light or even complex values (considering complex amplitudes in the time-harmonic regime). An example circuit of a unit cell of a \moving" transmission line is presented and analyzed both numerically and experimentally. The special case of composite right/left handed host line is also studied numerically. Besides the fundamental interest, the study is relevant for potential applications in realizing engineered materials for various transformations of electromagnetic elds.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Elektrotehnika

POVEZANOST RADA