Complementary split ring resonators for microstrip diplexer design

@article{citeulike:2768627, abstract = {A new topology for the design of microstrip microwave diplexers, based on the use of quasi-lumped resonators, is presented. Specifically, the receiver (Rx) and transmitter (Tx) filters of the diplexer are implemented by etching complementary split ring resonators (CSRRs) in the ground plane as well as series capacitive gaps and shunt inductive strips in the upper metal level. By this means, narrowband microwave diplexers with transmission zeros can be synthesised, which allow for the improvement of Rx/Tx isolation. A prototype device operative in the 2.4-3.0 GHz frequency band is presented. Measured insertion losses are lower than 2 dB while the isolation between Rx/Tx channels is in the vicinity of 40 dB. Diplexer dimensions (29.8/spl times/16.3 mm), which are small on account of the semi-lumped resonators employed, and performance point to the practical application of these structures in communication transceiver front-ends.}, author = {Bonache, J. and Gil, I. and Garcia-Garcia, J. and Martin, F. }, booktitle = {Electronics Letters}, citeulike-article-id = {2768627}, doi = {10.1049/el:20050895}, journal = {Electronics Letters}, keywords = {diplexer, microstrip, resonator, ring}, number = {14}, pages = {810--811}, posted-at = {2008-05-08 07:30:16}, priority = {2}, title = {Complementary split ring resonators for microstrip diplexer design}, url = {http://dx.doi.org/10.1049/el:20050895}, volume = {41}, year = {2005} }

TY - JOUR ID - citeulike:2768627 L3 - citeulike-article-id:2768627 TI - Complementary split ring resonators for microstrip diplexer design T2 - Electronics Letters JF - Electronics Letters VL - 41 IS - 14 SP - 810 EP - 811 N2 - A new topology for the design of microstrip microwave diplexers, based on the use of quasi-lumped resonators, is presented. Specifically, the receiver (Rx) and transmitter (Tx) filters of the diplexer are implemented by etching complementary split ring resonators (CSRRs) in the ground plane as well as series capacitive gaps and shunt inductive strips in the upper metal level. By this means, narrowband microwave diplexers with transmission zeros can be synthesised, which allow for the improvement of Rx/Tx isolation. A prototype device operative in the 2.4-3.0 GHz frequency band is presented. Measured insertion losses are lower than 2 dB while the isolation between Rx/Tx channels is in the vicinity of 40 dB. Diplexer dimensions (29.8/spl times/16.3 mm), which are small on account of the semi-lumped resonators employed, and performance point to the practical application of these structures in communication transceiver front-ends. KW - diplexer KW - microstrip KW - resonator KW - ring AU - Bonache, J AU - Gil, I AU - Garcia-Garcia, J AU - Martin, F PY - 2005/// UR - http://dx.doi.org/10.1049/el:20050895 ER -