Title :
Revisiting guided-wave and leakage-wave modal properties in near cutoff region with the concept of complex effective dielectric constant
Author :
Xiang-yin Zeng ; Shan-jia Xu ; Ke Wu ; Kwai-man Luk
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
A simple but good alternative way is given to define the antenna-mode and reactive-mode regions for open dielectric guiding structures by means of the concept of complex effective dielectric constant. The attenuation constant is clearly divided for the first time into two separate parts due to cutoff and leakage effect respectively. Simple closed-form expressions are derived to determine the two parts.
Keywords :
Dielectric waveguides; Permittivity; Waveguide theory; antenna-mode regions; attenuation constant; closed-form expressions; complex effective dielectric constant; cutoff; guided-wave modal properties; leakage effect; leakage-wave modal properties; near cutoff region; open dielectric guiding structures; reactive-mode regions; Antennas and propagation; Attenuation; Closed-form solution; Dielectric constant; Erbium; Frequency conversion; Information science; Microstrip antennas; Region 3; Surface waves;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.862269
