抄録
With the recent rapid progress in handsets, these antennas must keep pace with the downsizing of the handset unit. In this paper, we focus on topology design of magnetic materials for miniaturization of built-in antenna. In particular, the planer inverted F antenna are designed which allow for lowering resonance frequency. The density approach is applied to the topology optimization in order to analyze the topology of magnetic material. The FDTD method is used to analyze of electromagnetic field, and the adjoint variable method is used to analyze of the design sensitivity. As a result, it is confirmed that the optimal configuration of the magnetic materials can be obtained by using topology optimization approach.
