New design of ultra-wideband bandpass filter using interdigitated coupled lines CRLH-TL structure

Author

Qian Bu ; Jun Ding ; Chen Jiang Guo

Author_Institution

Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xian, China

fYear

2012

fDate

22-26 Oct. 2012

Firstpage

486

Lastpage

489

Abstract

The interest in UWB communication systems using metamaterial concept has been significant increased. In this paper, an ultra wideband bandpass filter based on composite right/left transmission line is presented. The proposed UWB bandpass filter is obtained by cascading the interdigital lines and three units of DGS structure. For the designed BPF, a wide bandwidth is achieved ranging from 3.9 to 10.3GHz. Moreover, the insertion loss is less than 1.5dB and the return loss better than -10dB, confirmed by measurement.

Keywords

band-pass filters; coupled transmission lines; metamaterials; microwave filters; CRLH-TL structure; DGS structure; UWB bandpass filter; UWB communication systems; composite right-left transmission line; frequency 3.9 GHz to 10.3 GHz; interdigital lines; interdigitated coupled lines; metamaterial concept; ultrawideband bandpass filter; Band pass filters; Filtering theory; Low pass filters; Microstrip filters; Microwave filters; Passband; Resonator filters; CRLH-TL; defected ground structure(DGS); interdigital lines; ultra-wideband passband filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on

Conference_Location

Xian

Print_ISBN

978-1-4673-1799-3

Type

conf

DOI

10.1109/ISAPE.2012.6408813

Filename

6408813