Title :
Non-radiative composite right/left-handed transmission line based on ridge substrate integrated waveguide
Author :
Qingshan Yang ; Yunhua Zhang
Author_Institution :
Key Lab. of Microwave Remote Sensing, Center for Space Sci. & Appl. Res., Beijing, China
fDate :
September 26 2013
Abstract :
A composite right/left-handed (CRLH) transmission line (TL) based on a ridge substrate integrated waveguide (RSIW) is proposed and investigated. Its guided wave properties of backward-wave supporting are studied. This CRLH TL is realised by etching an interdigital capacitor on the ridge surface of the original RSIW. The CRLH TL is fabricated on a multilayer printed circuit board. Both the simulated and measured results are presented. Compared with other non-radiative CRLH waveguides proposed before, this RSIW-based CRLH TL has the advantages of miniaturised size, low profile, low cost etc. Besides, unlike other proposed planar CRLH TLs, this closed planar CRLH structure can keep the energy propagating inside so as to avoid energy leakage. Flexible designs can be developed based on this CRLH RSIW in guided-wave and radiated-wave applications.
Keywords :
microwave metamaterials; ridge waveguides; substrate integrated waveguides; RSIW; closed planar CRLH structure; composite right/left-handed transmission line; energy leakage; etching; flexible design; guided-wave application; interdigital capacitor; multilayer printed-circuit board; nonradiative CRLH TL; radiated-wave application; ridge substrate integrated waveguide;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.2402
