Title :
Local Vortex Mode in Asymmetric Coupler Composed of Conventional Microstrip and Composite Right/Left-Handed Transmission Line with Lumped Elements
Author :
Zhang, Yewen ; Wang, Youzhen ; Liu, Fuqiang ; Li, Hongqiang ; Chen, Hong
Author_Institution :
Pohl Inst. of Solid State Phys., Tongji Univ., Shanghai
Abstract :
In this paper, a local vortex model is proposed to study the coupling modes that occur at the interface between a right-handed transmission line (RH TL) and a composite right/left handed transmission line (CRLH TL). Based on this model, it is demonstrated that the propagation constants on the two lines are parallel, while the power in the two lines are antiparallel. Full-wave simulation and time-domain experimental results are presented and verify this vortex model
Keywords :
coupled transmission lines; metamaterials; microstrip lines; waveguide theory; asymmetric coupler; composite right-left-handed transmission line; coupling modes; local vortex model; lumped elements; microstrip transmission line; propagation constants; right-handed transmission line; Capacitors; Coupling circuits; Frequency; Inductors; Microstrip; Power transmission lines; Propagation constant; Shunt (electrical); Transmission line theory; Transmission lines;
Conference_Titel :
Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007. IWAT '07. International Workshop on
Conference_Location :
Cambridge
Print_ISBN :
1-4244-1088-6
Electronic_ISBN :
1-4244-1088-6
DOI :
10.1109/IWAT.2007.370117
