Title :
Propagation characteristics of rectangular waveguide with fractal-regular rough surfaces
Author :
Zhang, Lu ; Deng, Hongwei ; Zhao, Yongjiu ; Jiang, Wanshun ; Ning, Yuemin
Author_Institution :
Coll. of Inf. Sci. & Technol., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
By introducing fractal parameters, an equivalent surface impedance boundary condition (ESIBC) for two-dimensional fractal-regular rough surfaces is derived. The compact 2-D finite-difference frequency-domain method (2-D CFDFD) with ESIBC to calculate the attenuation of a lossy rectangular waveguide containing fractal Inner Surfaces based on Weierstrass-Mandelbrot (M-W) function is employed, and the advantages of 2-D CFDFD are reserved. The effects of fractal parameters on attenuation constant are presented and the results are discussed in detail.
Keywords :
finite difference methods; fractals; frequency-domain analysis; rectangular waveguides; rough surfaces; surface impedance; 2-D finite-difference frequency-domain method; Weierstrass-Mandelbrot function; attenuation constant; equivalent surface impedance boundary condition; fractal parameters; lossy rectangular waveguide; two-dimensional fractal-regular rough surfaces; Attenuation; Electromagnetic waveguides; Fractals; Optical surface waves; Optical waveguides; Rectangular waveguides; Rough surfaces; Space technology; Surface roughness; Surface waves; 2D-CFDFD; SIBC; attenuation constant; fractal-regular rough surfaces; rectangular waveguide;
Conference_Titel :
Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3863-1
Electronic_ISBN :
978-1-4244-3864-8
DOI :
10.1109/ICEMI.2009.5274735
