Title :
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
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;
Conference_Titel :
Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on
Conference_Location :
Xian
Print_ISBN :
978-1-4673-1799-3
DOI :
10.1109/ISAPE.2012.6408813
