Optimisation of the Serration Outline Shape of a Single Offset-Fed Compact Antenna Test Range Reflector Using A Genetic Evolution of the Superformula

摘要

While the size of the reflector in general determines the usable area of the quiet zone inside which plane wave conditions are found, the edge treatment also plays a significant role in terms of overall quality and electromagnetic field distribution. Using modern fast simulation technology in combination with genetic optimisation, the edge treatment can be optimised specifically for a compact antenna test range as part of the design process. This is crucial as it maximises the efficiency with which the available space is used and therefore minimises the costs of implementation of a new facility. This is particularly important in 5G applications where multiple systems are typically required with any economies becoming multiplicative. Several commonly encountered reflector edge treatments are examined with the quiet-zone performances compared against that of an alternative genetically optimised serration design.