Title :
Fractal apertures in waveguides and conducting screens
Author :
Ghosh, Basudeb ; Sinha, Sachendra N. ; Kartikeyan, M.V.
Author_Institution :
Dept. of Electron. & Comput. Eng., Indian Inst. of Technol. Roorkee, Roorkee
Abstract :
This paper investigates the properties of Sierpinski gasket fractal aperture in a rectangular waveguide, in a conducting screen and as waveguide-fed slot antenna. The problem of multiple aperture coupling is solved using method of moments with RWG functions. A self-affine gasket geometry with a scale factor of 1.25 has been proposed for the rectangular waveguide problems. The fractal apertures show a multiband property with a band separation approximately equal to the scaling factor. The results have also been validated with HFSS.
Keywords :
fractals; method of moments; rectangular waveguides; slot antennas; MoM; RWG functions; Sierpinski gasket fractal aperture; conducting screens; method of moments; multiple aperture coupling; rectangular waveguide; self-afflne gasket geometry; waveguide-fed slot antenna; Aperture antennas; Band pass filters; Electromagnetic waveguides; Fractals; Frequency selective surfaces; Gaskets; Geometry; Magnetic separation; Moment methods; Rectangular waveguides;
Conference_Titel :
TENCON 2008 - 2008 IEEE Region 10 Conference
Conference_Location :
Hyderabad
Print_ISBN :
978-1-4244-2408-5
Electronic_ISBN :
978-1-4244-2409-2
DOI :
10.1109/TENCON.2008.4766784
