Two dimensional control of metamaterial parameters for radiation directivity
Author(s)Foltz, Eleanor R. (Eleanor Ruth)
2D control of metamaterial parameters for radiation directivity
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Jin Au Kong and Bae-Ian Wu.
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This work examines the feasibility of using metamaterials to direct radiation. The limits of required index of refraction and the required material depth are explored using MATLAB simulations. A wedge of connected S-shape metamaterial is chosen and simulated in CST Microwave Studio. The incident radiation is Transverse Magnetic (TM) and negative deflection is achieved. The S-shape wedge is adjusted in small ways, and a specific wedge is chosen for further study. The S-shape metamaterial wedge is then adjusted by adding lumped elements of capacitance throughout the structure. A beam through this adjustable material is deflected -76° to +580 by adding 0pF to 6pF additional capacitance. The deflection is not monotonic, but most pronounced between 0.lpF and 0.8pF. The deflection is discussed, as well as the regions of strongest signal power.
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.Includes bibliographical references (leaves 77-80).
DepartmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology
Electrical Engineering and Computer Science.