Abstract
Contactless power transmission using near-field inductive coupling is widely applied in modern industrial, consumer, and biomedical electronics. However, most of these applications connect an external inductor to harvest adequate energy. In this thesis a feasibility study of inductive coupling power harvesting with integrated antenna is made. Based on Faraday and Biot-Savart theories, the factors that will influence the coupling coefficient are estimated. These factors include transmitter flux density, receiver dimension, relative position and distance, parasitics, and so on. To verify the validation, some experiment are set up and measured. These outcomes are helpful for a test circuit with on-chip antenna. If all the parasitics can be well controlled, measurement results demonstrate that the coupling efficiency of 1% can be expected under the antenna area of 0.11mm2 and transmitter-receiver distance of 2mm.