%0 Journal Article
%T Novel Dual-Composite Right/Left-Handed Transmission Line and its Application to Bandstop Filter
%A Guo-Cheng Wu
%A Guang-Ming Wang
%A Tianpeng Li
%A Chao Zhou
%J PIER     Letters
%D 2013
%I EMW Publishing
%R 10.2528/PIERL12121101
%X A novel structure of dual-composite right/left-handed transmission line (D-CRLH-TL) is proposed in this paper, and its electromagnetic characteristics are investigated in theory and simulation. The dispersion curve of the proposed structure has been derived by using Bloch-Floquet theory. The structure is composed with an "H"-shaped defected ground structure (DGS) and two stubs with rectangular patches, compared with the structure of D-CRLH-TL proposed in paper [5] and [6], this structure is simpler and more easily adjusted. Then, an ultra wide-stopband (UWSB) bandstop filter based on the proposed D-CRLH-TL is designed, fabricated, and measured. The simulated and measured results show that the centre frequency of the filter is 5.1 GHz, the bandwidth of stopband is 90.2%, and the filter has sharp transmissions at the two edges of the stop-band. Besides, the designed filter in this paper has a smaller size than traditional ones, and can be easily fabricated.
%U http://www.jpier.org/pierl/pier.php?paper=12121101