Investigation of Terahertz Wave Propagation Along Shielded Dielectric Multiple-Slot Waveguide

In this paper, a shielded dielectric multiple-slot waveguide is presented and demonstrated by theoretical calculation at terahertz frequencies. Some electromagnetic analysis of waveguide currently employed simplified intrinsic frequency dispersion models for the bulk conductivity of normal metals us...

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Bibliographic Details
Published in:Journal of infrared, millimeter and terahertz waves millimeter and terahertz waves, 2011-02, Vol.32 (2), p.204-215
Main Authors: Wang, Zhihui, Zhang, Yong, Xu, Ruimin, Lin, Weigan
Format: Article
Language:English
Subjects:
Attenuation
Classical Electrodynamics
Conductivity
Conductors
Dielectric loss
Dielectrics
Eigenvalues
Electrical Engineering
Electronics and Microelectronics
Engineering
Gold
Infrared
Instrumentation
Mathematical models
Propagation
Sun
Terahertz frequencies
Wave attenuation
Wave propagation
Waveguides
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Summary:In this paper, a shielded dielectric multiple-slot waveguide is presented and demonstrated by theoretical calculation at terahertz frequencies. Some electromagnetic analysis of waveguide currently employed simplified intrinsic frequency dispersion models for the bulk conductivity of normal metals used in terahertz wave structures. This paper has compared various conductivity models for gold between 0.1-3 THz. The dielectric loss, conductor loss, total propagation loss with different conductivity models and E-field distribution has been obtained by numerically solving the complex eigenvalue equation for the propagation constant. The analysis results are in agreement with the assumption of R. Sun et al . and the experimental results obtained by H. Sun et al . The propagation loss deviation between various models is less than 3% at 0.2-0.5 THz. Comparisons with other slot waveguides are also given. The analysis results show that the proposed line has lower propagation attenuation than other slot waveguides.
ISSN:1866-6892
1866-6906
DOI:10.1007/s10762-010-9759-0