Kölpin, AlexanderAlexanderKölpinPape, BenediktBenediktPapeWeigel, RobertRobertWeigel2020-07-152020-07-152009-09IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID, IMWS: 5307868 (2009-09)http://hdl.handle.net/11420/6815In this paper a new strategy for designing dualband composite right and left handed (CRLH) structures based on lumped elements is introduced. By using the presented formulars the desired metamaterial devices become easily scalable to arbitrary frequencies as the parasitic elements of the lumped components are considered resulting in three design guidelines. The practical use is shown by a dualband branch line coupler and a Wilkinson power divider operating at 2.5 GHz and 5.25 GHz.enBranch line couplerComposite right and left handed transmission linesCRLHDualbandMetamaterialMicrostrip couplerWilkinson power dividerIntroducing new design guidelines for dualband CRLH structures formed by transmission lines and lumped componentsConference Paper10.1109/IMWS2.2009.5307868Other