Title :
Time-reversed electromagnetic wave propagation in case of directional antennas
Author :
Xiao, Shaoqiu ; Wang, Bing-Zhong
Author_Institution :
Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
In this paper, we study the influence of directional antennas on the propagation of time reversal (TR) ultra wideband (UWB) electromagnetic waves in a typical indoor environment. The directional antennas are formed by a dipole and a reflection horn with different flare directions. The results demonstrate that the directional antennas can influence the time and spatial focusing characteristics of the TR UWB electromagnetic waves. It implies that the UWB communication performance can be improved by using directional antennas.
Keywords :
dipole antennas; electromagnetic wave propagation; horn antennas; indoor communication; reflector antennas; ultra wideband antennas; dipole; directional antennas; indoor environment; reflection horn; time reversal ultra wideband electromagnetic waves; time-reversed electromagnetic wave propagation; Base stations; Dielectric constant; Dipole antennas; Directional antennas; Directive antennas; Electromagnetic analysis; Electromagnetic propagation; Electromagnetic scattering; Indoor environments; Ultra wideband technology;
Conference_Titel :
Antennas, Propagation and EM Theory, 2008. ISAPE 2008. 8th International Symposium on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-2192-3
Electronic_ISBN :
978-1-4244-2193-0
DOI :
10.1109/ISAPE.2008.4735228
