Naslov
Validity of approximate boundary conditions for periodic strips on cylindrical substrates

Autori
Šipuš, Zvonimir ; Zentner, Radovan ; Bartolić, Juraj

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

Izvornik
Proceedings of the 7-th International Conference on Mathematical Methods in Electromagnetic Theory MMET98 / Veliev, Eldar I. - : Int. Conferen. on Mathematical Methods in Electromagnetic Theory, 1998, 171-173

Skup
7-th International Conference on Mathematical Methods on Electromagnetic Theory MMET98

Mjesto i datum
Harkiv, Ukrajina, 02.06.1998. - 05.06.1998

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
gratings

Sažetak
The strip gratings on dielectric cylinders are analyzed by using two types of approximate boundary conditions and by the moment method (MoM). The used approximate boundary conditions are the boundary conditions obtained by the homogenization method (BCHM), where the local planar approximation was applied, and the asymptotic strip boundary conditions (ASBC). The results show that the both approximate boundary conditions give good results when the period of the strips is small compared to the wavelength. However, BCHM gives more accurate results, and practically there is no difference between the MoM results and the results obtained by BCHM method if the periodicity is small enough. Furthermore, the ASBC cannot predict the coupling of the incident wave to the waveguide modes of the strip-loaded dielectric cylinder, which is predicted both by the MoM and the BCHM methods. The numerical results are also compared to measurements showing a very good agreement.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA