# Self-Oscillating Wireless Power Transfer Systems

## TL;DR

This paper introduces a novel self-oscillating wireless power transfer system that generates microwave power directly at the energy recipient, enhancing efficiency and robustness against misalignments and obstacles.

## Contribution

It presents a new paradigm of wireless power transfer as a single distributed microwave generator with over-the-air feedback, differing from traditional separate source and receiver systems.

## Key findings

- Increased transfer efficiency
- Reduced sensitivity to misalignments
- Improved robustness against obstacles

## Abstract

Conventional wireless power transfer systems consist of a microwave power generator and transmitter located at one place and a microwave power receiver located at a distance. Here we show that wireless power transfer can be realized as a single distributed microwave generator with an over-the-air feedback, so that the microwave power is generated directly at the place where the energy needs to be delivered. We demonstrate that the use of this paradigm increases efficiency and dramatically reduces sensitivity to misalignments, variations in load and power, and possible presence of obstacles between the source and receiver.