Waveguide containing a backward-wave slab
Article first published online: 4 DEC 2003
Copyright 2003 by the American Geophysical Union.
Volume 38, Issue 6, December 2003
How to Cite
2003), Waveguide containing a backward-wave slab, Radio Sci., 38, 1101, doi:10.1029/2003RS002900, 6., and (
- Issue published online: 4 DEC 2003
- Article first published online: 4 DEC 2003
- Manuscript Accepted: 9 OCT 2003
- Manuscript Revised: 1 OCT 2003
- Manuscript Received: 4 APR 2003
- backward wave;
- double negative material;
 We have considered theoretically the waveguide properties of a plane two-layered waveguide, whose one layer is a usual magnetodielectric (forward-wave medium), but another one is a slab of so-called backward-wave material (BW-material), whose both permittivity and permeability are negative. We have analyzed the properties of eigenwaves in this waveguide. In particular, it was found that there exist waves of both TE and TM polarizations, whose fields decay exponentially from the interface of the two slabs inside both layers, and their slow-wave factor tends to infinity at small frequencies. Thus, this waveguiding system supports superslow waves with extremely short wavelengthes, as compared to the free-space wavelength and the cross section size. Other peculiarities of the spectrum are also discussed.