Wave propagation in ray-chaotic enclosures: paradigms, oddities and examples
Wave propagation in ray-chaotic enclosures: paradigms, oddities and examples
复制标题
射线混沌外壳中的波传播：范式、怪异和例子
DOI：
--
复制
发表时间：
2005
影响因子：
3.5
通讯作者：
L. Felsen
中科院分区：
文献类型：
--
作者：
V. Galdi;I. Pinto;L. Felsen
光线混沌是一种有趣的现象，其特征是原本邻近的多次反弹光线轨迹最终呈指数发散。它可以在几种电磁波传播场景中观察到：都非常复杂（例如，市区）和非常简单的（例如，体育场形状的空腔）场景。本文包含一个紧凑的审查已知结果的波传播射线混沌的情况。注意力主要集中在二维的简单范例的内部射线混沌（“射线混沌台球”），重点是可能的影响，高频波动力学（“射线混沌足迹”）。一般的概念，工具和数值例子进行了讨论，并指出其潜在的相关性，在电磁工程目前的挑战。
Ray chaos, characterized by eventual exponential divergence of originally nearby multi-bounce ray trajectories, is an intriguing phenomenon. It can be observed in several electromagnetic wave propagation scenarios: both very complex (e.g., urban areas) and very simple (e.g., a stadium-shaped cavity) scenarios. This paper contains a compact review of known results on wave propagation in ray-chaotic scenarios. Attention is focused principally on two-dimensional simple paradigms of internal ray chaos ("ray-chaotic billiards"), with emphasis on possible implications for high-frequency wave dynamics ("ray-chaotic footprints"). General concepts, tools, and numerical examples are discussed, and their potential relevance to current challenges in electromagnetic engineering is noted.