Title :
A novel dual-band balun based on the dual structure of composite right/left handed transmission line
Author :
Xin, Hu ; Pu, Zhang
Author_Institution :
Center for Opt. & Electromagn. Res., Zhejiang Univ., Hangzhou
Abstract :
Utilizing the opposite phase shifting property of a standard Composite Right/Left Handed (CRLH) transmission line (TL) and a dual structure of CRLH (D-CRLH) TL, a dual-band balun is designed. The dual-band balun is formed by a 1x2 (3-dB) splitter with a D-CRLH phase-shifting line in the top branch and a CRLH phase-shifting line in the bottom branch. The performance of the balun is verified with circuit simulation at 2.4 GHz and 5.0 GHz. The balun exhibits a very wide bandwidth for differential output phase, the return loss is well below -100 dB, and the insertion losses |S12| and |S13| are -3.03 plusmn 0.05 dB at both frequencies.
Keywords :
baluns; transmission lines; composite right handed transmission line; dual-band balun; frequency 2.4 GHz; frequency 5 GHz; insertion loss; left handed transmission line; phase shifting property; Circuit simulation; Design engineering; Dual band; Frequency; Impedance matching; Magnetic materials; Optical resonators; Refractive index; Transmission line theory; Transmission lines;
Conference_Titel :
Biophotonics, Nanophotonics and Metamaterials, 2006. Metamaterials 2006. International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
0-7803-9773-8
Electronic_ISBN :
0-7803-9774-6
DOI :
10.1109/METAMAT.2006.334966
