期刊名称：International Journal of Antennas and Propagation
印刷版ISSN：1687-5869
电子版ISSN：1687-5877
出版年度：2013
卷号：2013
页码：1-10
DOI：10.1155/2013/454916
出版社：Hindawi Publishing Corporation
摘要：The performance of the multiantenna systems can be deeply affected by the antenna layout, that is, the placement of the antenna
elements in a given area. This paper focuses on the optimal antenna layout which can maximize the ergodic capacity of a multiinput
single-output (MISO) beamforming system. Since the optimization problem cannot be solved analytically, we use simulated
annealing (SA) algorithm to search for the optimal antenna layout. The results show that the optimal antenna layout depends highly
on the power azimuth spectrum (PAS) distribution and power elevation spectrum (PES) distribution. In the three-dimensional (3D)
space uniformly scattering environment, the optimal antenna layout will locate the antenna elements on the surface of a sphere.
When the scattering is concentrated in a two-dimensional (2D) plane, the circular layout is the optimal and finally, when there is
no scattering (single plane wave), the optimal layout is the nonuniform linear array.
