Title :
Shape transformation of wave beams falling on quasiperiodic layered structures
Author :
Andreev, M. ; Borulko, V. ; Drobakhin, O. ; Sidorov, D.
Author_Institution :
Dnipropetrovsk Nat. Univ., Dnipropetrovsk, Ukraine
Abstract :
Bragg structures with distortion of periodicity are considered. Effects of scattering the wave beams falling at oblique angles are theoretically investigated. Methods of characteristic matrices and plane-wave decomposition are used for obtaining angular and spatial distribution of reflected and transmitted wave beams. Magnitudes and phases of scattered fields are analyzed. Phenomena of anomalous behavior of group shifts (decreasing and negative ones) are observed for Bragg structures with different type of periodicity distortions.
Keywords :
electromagnetic wave reflection; electromagnetic wave scattering; electromagnetic wave transmission; inhomogeneous media; matrix decomposition; periodic structures; Bragg structure; periodicity distortion; plane wave decomposition; quasiperiodic layered structure; reflected wave beam; shape transformation; spatial distribution; transmission matrix; transmitted wave beam; wave beam scattering; Antenna theory; Nonhomogeneous media; Optical resonators; Periodic structures; Reflection; Scattering; Shape; Bragg structures; layered media; method of transmission matrices; negative group shift;
Conference_Titel :
Antenna Theory and Techniques (ICATT), 2011 VIII International Conference on
Conference_Location :
Kyiv
Print_ISBN :
978-1-4577-2211-0
DOI :
10.1109/ICATT.2011.6170718
