English 收藏 设为主页
首页  |  实验室介绍  |  学术梯队  |  研究方向  |  研究成果  |  人才培养  |  学术交流合作  |  新闻动态  |  公告通知
公告通知
 
 
 
 
 
首页 > 历史公告通知 > 公告通知
  学术报告会通知  
 

  :    Integral Equation Analysis of Wave Propagation in Periodic Structures

报告人: Prof. Jiming Song, Iowa State University

时  间: 201068(周二)上午10:00-11:00

地  点: 东南大学(四牌楼校区李文正楼 6 614会议室

主  办:  东南大学毫米波国家重点实验室

          IEEE AP-MTT-EMC Joint Nanjing Chapter

          江苏省电子学会天线与微波专委会

内容简介:

The integral equation approaches are developed to analyze the wave propagation in periodic structures. Firstly, an integral equation approach is developed to analyze the two-dimensional (2-D) scattering from multilayered periodic array. The proposed approach is capable of handling scattering from the array filled with different media in different layers. Combining the equivalence principle algorithm and connection scheme (EPACS), it can be avoided to find and evaluate the multilayered periodic Green's functions. For 2^N identical layers, the elimination of the unknowns between top and bottom surfaces can be accelerated using the logarithm algorithm. More importantly, based on EPACS, an approach is proposed to effectively handle the semi-infinitely layered case in which a unit consisting of several layers is repeated infinitely in one direction.

Secondly, the integral-equation (IE) method formulated in the spatial domain is employed to calculate the scattering from the doubly periodic array of three-dimensional (3-D) perfect electric conductor (PEC) objects.  The special testing and basis functions are proposed to handle the problem with non-zero normal components of currents at the boundary of one period. Moreover, a relationship between the scattering from the PEC screen and its complementary structure is established. In order to efficiently compute the matrix elements from the IE approach, an acceleration technique with the exponential convergence rate is applied to evaluate the doubly periodic Green's function. The formulations in this technique are appropriately modified so that the new form facilitates numerical calculation for the general cases.
首页  |  实验室介绍  |  学术梯队  |  研究方向  |  研究成果  |  人才培养  |  学术交流合作  |  新闻动态  |  公告通知 毫米波国家重点实验室
版权所有 毫米波国家重点实验室地址:南京四牌楼2号 联系人:楮老师 电话:025-83794225 传真:025-83794225 邮编:210096