Analysis of an in-plane electromagnetic energy harvester with integrated magnet array

•In-plane electromagnetic energy harvester with serial coils and integrated magnet array is presented with optimized structure.•Finite element method analysis of the in-plane operation mode is systematically conducted.•Comparison of the in-plane and out-of-plane operation modes.•Fully integrated fabrication process based on electroplating of copper and CoNiMnP permanent magnet.