Array Factor derived from a Correlation Matrix

摘要

5G utilizes antenna arrays in every standardized configuration. Both ray-based and correlation-based modeling are often used to specify a propagation condition or evaluate measured data in conjunction with antenna arrays. This paper presents a method to estimate the array factor or beam pattern that is observed from an antenna array for a given channel model using a correlation matrix and compares to the theoretical array factor. Both a simple ULA and a Planar Array is used for evaluation. Also, the use of ray based geometric modeling is compared. This analysis also includes the effect of angle spread, providing a new perspective on how the channel model interacts with the antenna array.