Title :
Low frequency characterization of partially filled gratings-TE case
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
We derive analytical expressions for various fundamental parameters of an electrically narrow rectangular grating. These include tangential electric field over the aperture, equivalent admittance, aperture voltage and the reflection coefficient for the dominant Floquet mode. The grooves are assumed to be partially (or completely) filled with a lossy material. The loading material is simulated by applying the standard impedance boundary condition.
Keywords :
diffraction gratings; electric admittance; electric fields; electric impedance; electromagnetic wave reflection; electromagnetic wave scattering; waveguide theory; TE waves; analytical expressions; aperture; aperture voltage; current density distribution; dominant Floquet mode; electrically narrow rectangular grating; equivalent admittance; full wave integral equation; impedance boundary condition; loading material; lossy material; low frequency characterization; magnetic current density; parameters; partially filled gratings; periodic grooves; reflection coefficient; resistive strip gratings; scattering characteristics; tangential electric field; Admittance; Apertures; Boundary conditions; Computer aided software engineering; Dielectric materials; Frequency; Gratings; Reflection; Strips; Tellurium;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549646
