caa a22 4500 445305053 CHVBK 20180317142610.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10762-010-9739-4 doi (NATIONALLICENCE)springer-10.1007/s10762-010-9739-4 Lu Mai Key Lab. of Opt-Electronic Technology and Intelligent Control, Ministry of Education, Lanzhou Jiaotong University, 730070, Lanzhou, People's Republic of China aut Transmission Characteristics of Ridge Waveguide Loaded with Left-Handed Materials [Elektronische Daten] [Mai Lu] This paper presents a numerical study of the electromagnetic wave propagation in a double ridge waveguide, loaded with left-handed materials (LHM). The LHM is defined phenomenologically by assigning to it a negative permittivity and negative permeability simultaneously. Transmission characteristics such as cutoff wavelength, single-mode bandwidth, dispersion and field patterns have been investigated by edge-based finite element method. The results are compared to those with air- and dielectric-loaded ridge waveguide. It was found that the LHM-loaded ridge waveguide can greatly increase the cutoff wavelength with the disadvantage of a dramatic reduction in the single-mode bandwidth. The behavior of the dispersion curve of LHM-loaded ridge waveguide is similar to the cases of waveguide loaded with air or dielectric, except for a significant improvement of the propagation constant. The boundary conditions at the interface between the air and the LHM have been well illustrated and the antiparallel wave vector in LHM were obtained by considering the field patterns. The unusual behaviors of the LHM-loaded ridge waveguide provides the potential opportunities to design novel microwave and millimeter devices. Springer Science+Business Media, LLC, 2010 Left-hand materials nationallicence Ridge waveguide nationallicence Transmission characteristics nationallicence Edge-based finite element method nationallicence Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/1(2011-01-01), 16-25 1866-6892 32:1<16 2011 32 10762 https://doi.org/10.1007/s10762-010-9739-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10762-010-9739-4 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Lu Mai Key Lab. of Opt-Electronic Technology and Intelligent Control, Ministry of Education, Lanzhou Jiaotong University, 730070, Lanzhou, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/1(2011-01-01), 16-25 1866-6892 32:1<16 2011 32 10762 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer