p-adaptive FE-BI analysis of homogeneous, lossy regions for SAR- and far-field calculations

The paper presents novel performance results for p-adaptive hybrid FE-BI (finite element-boundary integral) analysis of externally excited, homogeneous, lossy regions in free space. The problems are considered with the object of calculating average specific absorption rate (SAR) and far-field values. Such problems are of interest, since problems of antenna-human interaction for establishing safety guidelines, fall into this category, which motivates the focus on SAR and far-field values. After reviewing the theory, results are presented, leading to the conclusion that the adaptive scheme cannot reduce the solution time, but can reduce the memory requirements by 15-25%.