Electromagnetic energy harvesting

Electromagnetic energy harvesting captures ambient electromagnetic waves—like radio, TV, or Wi-Fi signals—and converts them into usable electrical power. This process uses devices called antennas to pick up the electromagnetic energy, which then passes through components like inductors and rectifiers to transform the wave energy into direct current (DC) electricity. This technology enables small devices, such as sensors or IoT gadgets, to operate without batteries by harnessing existing electromagnetic signals in the environment, providing a sustainable and maintenance-free power source by efficiently converting ambient electromagnetic energy into usable electrical energy.