Title :
Fresnel spiral antenna for detection at visible and far-infrared bands
Author :
González, Francisco J. ; Alda, Javier
Author_Institution :
Coordinacion para la Innovacion de la Cienc. y la Tecnol., Univ. Autonoma de San Luis Potosi, San Luis Potosi, Mexico
Abstract :
A dual-band device has been designed and simulated to simultaneously detect optical radiation in the far infrared (at 10 μm) and the visible band. The infrared detector consists of a spiral antenna obtained from an adaptation of a Fresnel zone plate. Symmetric and asymmetric designs have been proposed and simulated. The response in the infrared is obtained from a computational electromagnetic calculation. The diffraction pattern at the focal point of the element has been calculated to check the feasibility of the modified design.
Keywords :
Adaptive arrays; Computational modeling; Dual band; Fresnel reflection; Infrared detectors; Optical design; Optical detectors; Optical devices; Radiation detectors; Spirals;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona, Spain
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4
