Abstract
This article describes the development of a radio frequency (RF) platform for electromagnetically modulated signals that makes use of a software-defined radio (SDR) to receive information from a novel magnetoelectric (ME) antenna capable of sensing low-frequency magnetic fields with ultra-low magnitudes. The platform is employed as part of research and development to utilize miniaturized ME antennas and integrated circuits for neural recording with wireless implantable devices. To prototype the reception of electromagnetically modulated signals from a sensor, a versatile Universal Software Radio Peripheral (USRP) and the GNU Radio toolkit are utilized to enable real-time signal processing under varying operating conditions. Furthermore, it is demonstrated how a radio frequency signal transmitted from the SDR can be captured by the ME antenna for wireless energy harvesting.
Highlights
Wireless devices with minuscule size, low power requirements, and low cost are in high demand for a variety of operating frequencies and emerging applications
As a consequence of their unique design, the devices can be realized with dual resonant modes having two operating frequencies: a thin-film bulk acoustic wave resonator (FBAR) high-frequency (2.5 GHz) resonance mode associated with thickness, and a nano-plate resonator (NPR) low-frequency (
We describe for the first time how this sensed ME field information can be received and demodulated with an software-defined radio (SDR)
Summary
Diptashree Das 1 , Mehdi Nasrollahpour 1 , Ziyue Xu 1 , Mohsen Zaeimbashi 2 , Isabel Martos-Repath 1 , Ankit Mittal 1 , Adam Khalifa 3 , Sydney S. Cash 3 , Aatmesh Shrivastava 1 , Nian X. Received: November 2020; Accepted: 8 December 2020; Published: December 2020
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