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Design and Modeling of Patch Antenna Printed on Magneto-Dielectric Embedded-Circuit Metasubstrate

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2 Author(s)
Mosallaei, H. ; Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA ; Sarabandi, K.

The design and modeling of an embedded-circuit metamaterial with epsi-mu constitutive parameters as the substrate for patch antennas is presented. The magneto-dielectric metasubstrate is constructed of periodic resonant loop circuits embedded in a low dielectric host medium, and is capable of providing both permittivity and permeability material parameters at any frequency of interest. The embedded-circuit building blocks are very small in size (<lambda/20) and constitute artificial material molecules. Geometric control of the embedded-circuits allows epsiv and mu to be tailored to the application. A transmission line circuit model analogy is developed to theoretically investigate the behavior of designed embedded-circuit metamaterial and predict its physical parameters. In addition, a full wave analysis based on finite difference time domain (FDTD) technique is applied to comprehensively characterize the complex periodic structure. The potential advantage of magneto-dielectric metasubstrate for the design of small antennas having relatively wide bandwidth is investigated

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Antennas and Propagation, IEEE Transactions on  (Volume:55 ,  Issue: 1 )