Parallel Waveguides using Photonic Crystals (Periodic Band Gap Structure) - FDTD Animation

۳.۹ K


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This is the second of the series for the waveguiding structures using the periodic band gap materials (The first one is at: http://www.youtube.com/watch?v=gZkFVco4kL4). Here, two simultaneous simulations are shown. In the right one, both excitations are in-phase (cosine-cosine) whereas in the left, the excitations are out of phase by 90 degrees (sine-cosine). Originally, this was inspired by the following video: http://www.youtube.com/watch?v=O-6l0bvAda0 Guiding EM waves via periodic structure. The frequency of operation is 11.085 GHz. The relative dielectric permittivity of the square blocks are 11.56 and the ambient medium is air. Each block is 3.5 mm x 3.5 mm. The main reference is the below dissertation: Marcelo Bruno Dias, "Estudo da Propagação de Ondas Eletromagnéticas em Estruturas Periódicas". Graduation Dissertation - Electrical Engineering Course, Universidade Federal do Pará (UFPA), Belém, Pará Brazil, 2003. More details can be found in their lab web site: www.lane.ufpa.br/publicacoes.html Also see below: Half Wavelength Dipole Antenna Radiation http://www.youtube.com/watch?v=Wllxhuo9iPk Oblique Plane Wave Reflection From Half Space http://www.youtube.com/watch?v=0-koW8jm8Pw Radiation from a Circularly Tapered Dielectric Waveguide http://www.youtube.com/watch?v=EXvdruxTDKk Right Hand Circular Polarization (RHCP) Animation http://www.youtube.com/watch?v=jY9hnDzA6Ps Linear Polarization Animation http://www.youtube.com/watch?v=oDwqUgDFe94 Left Hand Elliptical Polarization (LHEP) Animation http://www.youtube.com/watch?v=KZz25bmTWXo Standing Wave Pattern (SWR) Animation http://www.youtube.com/watch?v=s5MBno0PZjE Electromagnetic Propagation of UWB Short Pulse in Random Medium http://www.youtube.com/watch?v=qpDQ44F4Qks

Published by: meyavuz
Published at: ۹ years ago
Category: آموزشی