Title :
Surface-wave guiding using periodic structures
Author :
Byers, A. ; Rumsey, I. ; Popovic, Z. ; Piket-May, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
In this paper, we present finite-difference time-domain (FDTD) simulations of two periodic frequency-selective waveguides: (1) a periodic lattice of dielectric rods where the waveguide is formed by removing some of the rods; and (2) a periodic lattice of metallic plates above a ground connected to the ground by metallic posts. The first photonic bandgap (PBG) waveguide is designed to operate in the optical region from 1.5 to 2 /spl mu/m wavelength, and it exhibits over 30 dB rejection in unwanted directions. The second PBG structure is designed to exhibit a bandgap in the microwave range from 10 to 12 GHz, and also shows over 30 dB attenuation of guided field in the unwanted directions.
Keywords :
finite difference time-domain analysis; optical waveguide theory; periodic structures; photonic band gap; surface electromagnetic waves; waveguide theory; 1.5 to 2 micron; 10 to 12 GHz; FDTD simulations; PBG waveguide; dielectric rods; finite-difference time-domain simulations; metallic plates; metallic posts; microwave range; optical region; periodic frequency-selective waveguides; periodic lattice; periodic structures; photonic bandgap waveguide; surface-wave guiding; Dielectrics; Finite difference methods; Frequency; Lattices; Optical attenuators; Optical surface waves; Optical waveguides; Periodic structures; Photonic band gap; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.873832
