Abstract
A self-powered, hybrid sensor integrating a resonant microfabricated antenna with a spin valve sensor was fabricated. The device was activated by a radio frequency (RF) external electromagnetic source. This hybrid device was designed to behave as a series resonant circuit at 130 MHz. The self-powered sensor (powered by the RF field through the antenna) was capable of measuring the amplitude of the perpendicular RF excitation field crossing the antenna, down to 2.5 μT when excited with a RF field of 130 MHz.
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