Transformation Optics-based Antennas

The book is organized in two chapters after an introduction part. The introduction presents the basic principles of the transformation optics concept. Two types of transformation are presented: coordinate transformation and space transformation. Implementations using metamaterials are also discussed. Chapter 1 focuses on coordinate transformation to design devices capable of modifying the electromagnetic appearance of a radiating source. Transformation of a directive radiation pattern into an isotropic one and vice-versa through a space stretching and compression, respectively, and the possibility to create multiple beams are studied. Chapter 2 deals with devices designed using space transformation concept. Quasi-conformal transformation optics (QCTO) is applied for the design of lenses either to compensate for the phase shift created by the conformation of an array of sources or to steer a beam to an off-normal direction. Materials are engineered through 3D printing and prototypes presenting a variation in electromagnetic parameters are fabricated and tested to validate the proposed lenses. Focuses firstly on the theoretical tools defining transformation optics conceptAddress the origin of the concept by analyzing Fermat's principleDetails the basic approaches and the methods to design practical applications of transformation optics concepts INDICE: Chapter 1: Transformation optics concept: definition and toolsChapter 2: Coordinate transformation concept: transformation of electromagnetic sourcesChapter 3: Space transformation concept: controlling the path of electromagnetic wavesGeneral conclusions

• ISBN: 978-1-78548-197-0
• Editorial: ISTE Press - Elsevier
• Encuadernacion: Cartoné
• Páginas: 130
• Fecha Publicación: 01/06/2016
• Nº Volúmenes: 1
• Idioma: Inglés