DocumentCode :
1985996
Title :
A novel SCRLH transmission line structure and its application to UWB filter design
Author :
Gong, Jian-Qiang ; Chu, Qing-Xin
Author_Institution :
Sch. of Electron. Eng., Xidian Univ., Xian
fYear :
2008
fDate :
9-12 Nov. 2008
Firstpage :
316
Lastpage :
319
Abstract :
In this paper, a novel simplified composite right/left-handed (SCRLH) transmission line (TL) structure is proposed. The dispersion and impedance characteristics of the novel structure are first analysed based on Bloch-Floquet theory, which shows that the attenuation constant keeps zero with a relatively smooth characteristic impedance distribution within the passband and that the characteristic impedance is purely imaginary with the inhibition of the electromagetic wave propagation outside the passband. Based on the above analysis, the methodology of synthesizing bandpass filter by utilizing the novel structure is further proposed, which is then adopted to design a UWB filter with the center frequency located at 6.85 GHz and the fractional bandwidth of 110%. A good agreement among the circuit simulation, fullwave simulation and experimental results justifies the theoretical analysis and the synthesis method presented in the paper.
Keywords :
metamaterials; microwave filters; microwave materials; transmission line theory; ultra wideband technology; Bloch-Floquet theory; SCRLH transmission line structure; UWB filter design; bandpass filter; circuit simulation; electromagetic wave propagation; frequency 6.85 GHz; fullwave simulation; right/left-handed transmission line; Attenuation; Band pass filters; Circuit simulation; Circuit synthesis; Electromagnetic analysis; Image analysis; Impedance; Passband; Transmission line theory; Transmission lines;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Metamaterials, 2008 International Workshop on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-2608-9
Electronic_ISBN :
978-1-4244-2609-6
Type :
conf
DOI :
10.1109/META.2008.4723605
Filename :
4723605
Link To Document :
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