Left handed coplanar waveguide band pass filters based on bi-layer split ring resonators

@article{citeulike:2648172, abstract = {A new type of compact band pass filters based on planar structures with three metal levels is proposed. The central layer consists on a coplanar waveguide (CPW) with periodic wire connections between the central strip and ground planes. In the upper and lower metal levels, split ring resonators (SRRs) are etched and aligned with the slots. The wires make the structure to behave as a microwave plasma, with a negative effective permittivity covering a wide frequency range. SRRs, which are magnetically coupled to the CPW, provide a negative magnetic permeability in a narrow frequency range above their resonant frequency. The result is a band pass structure which supports wave propagation in a frequency interval where negative permittivity and permeability coexist. The bandwidth of the structure can be controlled by tuning the resonant frequency of the upper and lower SRRs and the distance between SRRs. Fabricated prototype devices exhibit very low insertion losses in the pass band (<1.5 dB) and high frequency selectivity.}, author = {Falcone, F. and Martin, F. and Bonache, J. and Marques, R. and Lopetegi, T. and Sorolla, M. }, booktitle = {Microwave and Wireless Components Letters, IEEE}, citeulike-article-id = {2648172}, doi = {10.1109/LMWC.2003.821512}, journal = {Microwave and Wireless Components Letters, IEEE}, keywords = {coplanar, filter, lh, metamaterial}, number = {1}, pages = {10--12}, posted-at = {2008-04-10 07:51:27}, priority = {2}, title = {Left handed coplanar waveguide band pass filters based on bi-layer split ring resonators}, url = {http://dx.doi.org/10.1109/LMWC.2003.821512}, volume = {14}, year = {2004} }

TY - JOUR ID - citeulike:2648172 L3 - citeulike-article-id:2648172 TI - Left handed coplanar waveguide band pass filters based on bi-layer split ring resonators T2 - Microwave and Wireless Components Letters, IEEE JF - Microwave and Wireless Components Letters, IEEE VL - 14 IS - 1 SP - 10 EP - 12 N2 - A new type of compact band pass filters based on planar structures with three metal levels is proposed. The central layer consists on a coplanar waveguide (CPW) with periodic wire connections between the central strip and ground planes. In the upper and lower metal levels, split ring resonators (SRRs) are etched and aligned with the slots. The wires make the structure to behave as a microwave plasma, with a negative effective permittivity covering a wide frequency range. SRRs, which are magnetically coupled to the CPW, provide a negative magnetic permeability in a narrow frequency range above their resonant frequency. The result is a band pass structure which supports wave propagation in a frequency interval where negative permittivity and permeability coexist. The bandwidth of the structure can be controlled by tuning the resonant frequency of the upper and lower SRRs and the distance between SRRs. Fabricated prototype devices exhibit very low insertion losses in the pass band (<1.5 dB) and high frequency selectivity. KW - coplanar KW - filter KW - lh KW - metamaterial AU - Falcone, F AU - Martin, F AU - Bonache, J AU - Marques, R AU - Lopetegi, T AU - Sorolla, M PY - 2004/// UR - http://dx.doi.org/10.1109/LMWC.2003.821512 ER -