Title :
Propagation modes of a cylindrical waveguide loaded by a coaxial chiral cylinder
Author :
Bacon, D. ; Rao, T.C.K.
Author_Institution :
Microwave Lab., Massachusetts Univ., Lowell, MA, USA
fDate :
6/1/1998 12:00:00 AM
Abstract :
The propagation behaviour of a cylindrical waveguide loaded centrally by a coaxial chiral rod is investigated by a boundary value procedure. Numerical results for the axial phase constant as a function of the normalised outer radius of the cylindrical waveguide, chiral rod diameter and chiral admittance parameter are presented for the modes with azimuthal indices of n=1, n=-1 and n=0. Application of these results to the material characterisation problem is discussed and compared with the problem of a cylindrical waveguide that is internally coated with a chiral material
Keywords :
chirality; circular waveguides; electric admittance; waveguide theory; axial phase constant; azimuthal indices; boundary value procedure; characteristic equation; chiral admittance parameter; chiral material; chiral rod diameter; coaxial chiral cylinder; coaxial chiral rod; diameters ratio; internally coated waveguide; loaded cylindrical waveguide; material characterisation; normalised outer radius; propagation modes;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19981858
