Title :
Analysis of leaky modes in circular dielectric rod waveguides
Author :
Kim, Ki Young ; Tae, Heung-Sik ; Lee, Jeong-Hae
Author_Institution :
Sch. of Electron. & Electr. Eng., Kviingpook Nat. Univ., Daegu, South Korea
Abstract :
The leaky modes of dielectric rod waveguides are analysed based on the normalised phase and attenuation constants obtained using Davidenko´s method. It was found that for several lower-order transverse magnetic (TM) modes, the nonphysical leaky mode, antenna mode, reactive mode, and spectral gap all existed below the cutoff frequency of the guided mode.
Keywords :
circular waveguides; dielectric waveguides; modal analysis; waveguide theory; 0 to 60 GHz; Davidenko method; antenna mode; circular dielectric rod waveguides; guided mode cutoff frequency; leaky modes analysis; lower-order transverse magnetic modes; nonphysical leaky mode; normalised attenuation constants; normalised phase constants; reactive mode; spectral gap;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030111
