The transient scattering mechanism of dipole array with reflector
Zhang Xue-Qin(张雪芹)a)b)†, Wang Jun-Hong(王均宏)a)b), and Li Zeng-Rui(李增瑞)a)b)
a Key Laboratory of All Optical Network & Advanced Telecommunication Network, Ministry of Education, Beijing 100044, China; b Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China
Abstract The transient backscattering mechanisms of a dipole array with reflector have been investigated from different aspects: time-domain, frequency-domain, and combined time-frequency domain, using $4\times 8$ dipole arrays with reflector as an example. The data of scattering from the arrays under the incidence of Gaussian pulses are obtained by finite differential time domain method. The influences of the array structural parameters, incident wave parameters, and incident angles on the waveforms, spectrum, and time-frequency representations of the backscattered fields of the arrays are analysed and conclusions are drawn. From these characteristics and conclusions, it is possible to deduce the array structure inversely from the backscattered field.
Received: 08 May 2007
Revised: 28 August 2007
Accepted manuscript online:
Fund: Project supported by the
Foundations of Beijing Jiaotong University and the Scientific
Research Foundation for the Returned Overseas Chinese Scholars,
State Education Ministry.
Cite this article:
Zhang Xue-Qin(张雪芹), Wang Jun-Hong(王均宏), and Li Zeng-Rui(李增瑞) The transient scattering mechanism of dipole array with reflector 2008 Chin. Phys. B 17 608
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