Reduction of Bend Losses at Sharp Bend in Post Wall Waveguide

摘要：

　　In this paper,we consider some techniques to reduce the bend losses.We apply the method of moments to analyse the reflection of millimeter waves from the right-angle bend.The global basis functions were used to reduce the number of unknowns per metal post and the necessary computer memory is also reduced.Furthermore,the Galerkin method was used to obtain a sytem of linear equations.Therefore,the resulting matrix is symmetric.Since the objects were confined to circular metallic posts,the elements of matrix were calculated in closed form and no numerical integration is needed.It will be shown that only a few additional posts are set at appropriate positions in the post wall waveguide,almost all incident waves go around the corner and the bend losses are minimized.Especially,only one additional metallic post is enough to minimize the bend losses.

作者: Kenichiro Yashiro Ning Guan

作者单位: Chiba University,Japan Fujikura Ltd.,Japan

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2014(2014年电磁学研究新进展学术研讨会)

会议地点: 广州

会议语种:英文

页码: 2268-2272

在线出版日期: 2014-08-01（万方平台首次上网日期，不代表论文的发表时间）