Title :
Compact duplexer for the UWB system using novel CRLH bandpass filters
Author :
Boram Lee ; Geonho Jang ; Sungtek Kahng ; Da-jeong Eom ; Inkyu Yang ; Kyungseok Kahng ; Kim, Heonhwan
Author_Institution :
Dept. of Inf. & Telecomm. Eng., Univ. of Incheon, Incheon, South Korea
Abstract :
In this paper, a miniatuirized duplexer for the lower-half UWB is implemented. Firstly, to reduce the size, novel metamaterial CRLH bandpass filter structures are designed for the duplexer of the 2 channels (3.2GHz ~ 3.7GHz and 4.3GHz ~ 4.7GHz). Secondly, they are further changed to have transmission zeros to improve channel selectivity. Finally, the optimized geometry of the duplexer is obtained to hold the proposed bandpass filters. The presented design methodology is validated through the EM simulation and the measurement. Besides, the performance and size-reduction effect of proposed design is addressed.
Keywords :
band-pass filters; metamaterials; ultra wideband communication; EM simulation; UWB system; channel selectivity; compact duplexer; lower-half UWB; metamaterial CRLH bandpass filter; miniatuirized duplexer; optimized geometry; size-reduction effect; transmission zeros; Band pass filters; Couplings; Filtering theory; Geometry; Metamaterials; Microwave filters; Resonator filters; Bandpass filter; Channel Selectivity; Duplexer; Metamaterial CRLH structure; Miniaturization; UWB;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2012 Asia-Pacific
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1330-9
Electronic_ISBN :
978-1-4577-1331-6
DOI :
10.1109/APMC.2012.6421561
