An Improved Quasi-Analytic Method for Direct Impulse Response Analysis of an Offset Reflector

作者：Wu, Chuan; Yang, Feng^*; Ouyang, Jun; Zhou, Haijing

来源：Electromagnetics, 2012, 32(7): 375-388.

DOI：10.1080/02726343.2012.716678

• direct impulse response
• time-domain Gaussian beam
• coordinate transform
• adaptive interpolation

For impulse-radiating-antenna applications, an improved quasi-analytic method of offset reflectors' direct impulse response analysis is presented in this article. The offset reflector is illuminated by a time-domain Gaussian beam. The proposed method can eliminate errors caused by numerical differentiation because the numerical differentiation of step response is avoided. Time-domain physical optic approximation is utilized to investigate the direct impulse response. With the appropriate coordinate transform, the direct impulse response integral problem can be reduced to one-dimensional angular integral, which is independent of the reflector's size. Adaptive interpolation is adopted when the impulse response changes rapidly.

• 出版日期2012
• 单位电子科技大学; 北京应用物理与计算数学研究所