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Optical antenna design for indoor optical wireless communication systems
Author(s) -
RamirezIniguez R.,
Green R. J.
Publication year - 2005
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.701
Subject(s) - computer science , optical wireless , wireless , antenna (radio) , optical filter , concentrator , optics , reflection (computer programming) , limit (mathematics) , broadband , directional antenna , optical communication , optical wireless communications , signal (programming language) , telecommunications , physics , mathematical analysis , mathematics , programming language
In the present paper, the design of the non‐imaging totally internally reflecting concentrator family denominated optical antennas (OAs) is discussed, and its use for indoor optical wireless communication systems is explained. The lenses presented here can be designed to provide a prescribed angular response in order to limit the central wavelength shift in thin‐film optical filters. They can also be designed for any specific field‐of‐view (FOV), which allows greater rejection of unwanted background radiation and higher gains. The use of a variety of optical filters to achieve a high signal‐to‐noise ratio at the receiver is described. Design methods and properties of different Optical Antennas are explained. Comparisons of size and performance of total internal reflection based concentrators with those based on dielectric hemispheres and compound parabolic concentrators (CPCs) are carried out. Finally different experimental results are presented. Copyright © 2005 John Wiley & Sons, Ltd.