室内可见光通信多阵元发射天线优化设计-应用科学学报.PDF

29 3 Vol. 29 No. 3 20115 JOURNAL OF APPLIED SCIENCES — Electronics and Information Engineering May 2011 DOI: 10.3969/j.issn.0255-8297.2011.03.004 1. 710106 2. 710048 LEDLED. . . . TN929 0255-8297(2011)03-0238-05 Design of Multi-element Transmitting Antenna for Indoor Visible Light Communication DING De-qiang , KE Xi-zheng , LI Jian-xun 1. Department of Military Electronic Engineering, Xi’an Communication Institute, Xi’an 710106, China 2. Faculty of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China Abstract: A multi-element transmitting antenna composed of white LEDs based on a new white LED radiation model is designed. Effects of parameters used in the design on the distribution of received indoor power are studied, including element layout, LED optical axis polar angle, layer distance, and number of elements. Based on simulation, reasonable design parameters of the transmitting antenna are presented. By controlling transmitted power of the LED, a design method for transmitting antenna with flat-top distribution of received power is obtained. Simulation and experiments verify the new white LED radiation model. Keywords: indoor visible light communication, multi-element transmitting antenna, distribution of received power LED . [8]LED