Title :
Propagation characteristics of a dielectric-coated coaxial helical waveguide in a lossy medium
Author :
Iyama, Takahiro ; Takada, Jun-ichi
Author_Institution :
Int. Cooperation Center for Sci. & Technol., Tokyo Inst. of Technol., Japan
fDate :
4/1/1997 12:00:00 AM
Abstract :
In this paper, the authors discuss the propagation characteristics of a dielectric-coated coaxial helical waveguide in a lossy medium. The authors place emphases on the phase constant, propagation modes, magnetic fields distribution, and attenuation constant, when permittivity of the internal region is relatively small, two propagation modes exist and dominant components of their magnetic fields are different. Lastly, the authors discuss the relation between the attenuation constant and permittivities
Keywords :
coaxial waveguides; helical waveguides; magnetic fields; permittivity; attenuation constant; dielectric-coated coaxial helical waveguide; internal region; lossy medium; magnetic field distribution; permittivities; phase constant; propagation characteristics; propagation modes; Coaxial components; Conductors; Dielectric losses; Impedance; Magnetic fields; Microwave propagation; Microwave theory and techniques; Permittivity; Propagation losses; Waveguide transitions;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
