Title :
Relation Between Reflection Phase and Surface-Wave Bandgap in Artificial Magnetic Conductors
Author :
Samani, Mohammadbagher Fereidani ; Borji, Amir ; Safian, Reza
Author_Institution :
Dept. of Electr. & Comput. Eng., Isfahan Univ. of Technol., Isfahan, Iran
Abstract :
The relationship between the phase of the reflection coefficient and the surface-wave bandgap in planar artificial magnetic conductors (AMCs) is investigated. The periodic surface of the AMC is modeled as a surface impedance and the plane-wave reflection coefficients and the supported surface waves are obtained by this model. Next, the connection between the phase of the reflection coefficient in the fast-wave region and the occurrence of bandgap in the slow-wave region is demonstrated. Theoretical results are verified numerically for two typical AMCs.
Keywords :
electromagnetic wave reflection; magnetic materials; photonic band gap; surface electromagnetic waves; artificial magnetic conductors; fast-wave region; periodic surface; plane-wave reflection coefficients; reflection phase; slow-wave region; surface impedance; surface-wave bandgap; Dispersion; Harmonic analysis; Impedance; Mathematical model; Photonic band gap; Surface impedance; Surface waves; Artificial magnetic conductors (AMCs); electromagnetic-bandgap (EBG) structures; periodic surfaces; reflection phase;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2011.2157353
