Title :
On the complex nature of higher order modes in lossless nonreciprocal transversely magnetized waveguides
Author :
Marqués, R. ; Mesa, F. ; Horno, M.
Author_Institution :
Dept. de Electron. y Electromagnet., Sevilla Univ., Spain
fDate :
7/1/1992 12:00:00 AM
Abstract :
Propagation of nonreciprocal modes in transversely magnetized lossless nonreciprocal waveguides is analyzed. It is shown that purely evanescent modes cannot exist if the wave propagation is nonreciprocal. As a consequence of this, all the modes which do not support a net average power flux must be complex. These modes are called pseudo-evanescent complex modes. The meaning of the cutoff frequency concept of such pseudo-evanescent complex modes is also discussed.<>
Keywords :
guided electromagnetic wave propagation; waveguide theory; cutoff frequency; evanescent modes; higher order modes; lossless nonreciprocal waveguides; nonreciprocal modes; pseudo-evanescent complex modes; transversely magnetized waveguides; wave propagation; Electromagnetic waveguides; Gyrotropism; Magnetic anisotropy; Magnetic flux; Magnetic losses; Magnetic materials; Perpendicular magnetic anisotropy; Propagation constant; Propagation losses; Waveguide theory;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
