Title :
Broadband left-handed waveguide with double L-shaped short stubs and E-plane posts
Author :
Kim, Dong-Jin ; Lee, Jeong-Hae
Author_Institution :
Dept. of Electron. & Electr. Eng., Hongik Univ., Seoul, South Korea
Abstract :
In this paper, a broadband left-handed (LH) rectangular waveguide is presented. The unit cell of the metamaterial structure consists of two double L-shaped short stubs and two E-plane posts in a rectangular waveguide. The E-plane posts are crossly connected to two stubs which are embodied in the top and bottom plane of a rectangular waveguide. The metamaterial waveguide is modeled as a 2-port network crossly connected equivalent circuit. It has a broad double negative (DNG) band and good transmission characteristic. The simulated and measured results of the LH waveguide constructed with 5 unit cells prove a broad LH band of 12.7%.
Keywords :
metamaterials; microwave devices; rectangular waveguides; 2-port network; E-plane posts; LH waveguide; broad LH band; broad double negative band; broadband left-handed rectangular waveguide; double L-shaped short stubs; equivalent circuit; metamaterial structure; metamaterial waveguide; transmission characteristic; unit cell; Broadband communication; Equivalent circuits; Integrated circuit modeling; Metamaterials; Rectangular waveguides; Transmission line measurements; DNG structure; left-handed transmission line; metamaterials; waveguide;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5997149
