Title :
Modeling of asymmetric and unbalanced composite right/left-handed transmission line
Author :
Chen, Peilin ; Ding, Jun ; Zheng, Xiaodong
Author_Institution :
Satellite Navig. Dept., China Electron. Sci. & Technol. Group Corp., Shijiazhuang, China
Abstract :
The techniques in the parameter retrieval procedure based on Nicolson-Ross-Weir (NRW) approach are discussed for asymmetric composite right/left-handed transmission line (CRLH TL). A 10mm-long microstrip transmission line is calculated by the revised method for validation and comparison. An improved lumped parameter extraction in equivalent circuit modeling is proposed for unbalanced CRLH TL. The prototype CRLH TL proposed by Caloz et al is analyzed for illustration, which reveals that there is weak-unbalance in this prototype. The characteristic of band gap in unbalanced CRLH TL is fully recovered by the proposed algorithm. Finally, good agreement is observed between the response in circuit modeling and the simulation results in practical structure. The potential application of the algorithm lies in efficient guidance and validation for new designs of CRLH TL structures.
Keywords :
equivalent circuits; microstrip lines; CRLH TL; NRW approach; Nicolson-Ross-Weir approach; asymmetric modeling; band gap characteristic; equivalent circuit modeling; lumped parameter extraction; microstrip transmission line; size 10 mm; unbalanced composite right-left-handed transmission line; Dispersion; Equivalent circuits; Integrated circuit modeling; Metamaterials; Microstrip; Photonic band gap; Prototypes; CRLH; Modeling; S parameter; retrieval;
Conference_Titel :
Signal Processing, Communications and Computing (ICSPCC), 2011 IEEE International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4577-0893-0
DOI :
10.1109/ICSPCC.2011.6061798
