Note: A Radio Frequency Voltage-Controlled Current Source for Quantum Spin Manipulation
Daniel S. Barker, Alessandro Restelli, James A. Fedchak, Julia K. Scherschligt, Stephen P. Eckel
We present a design for a wide-bandwidth, voltage-controlled current source that is easily integrated with radiofrequency magnetic field coils. Our design uses current feedback to compensate for the frequency-dependent impedance of a radiofrequency antenna. We are able to deliver peak currents greater than 100 mA over a 300 kHz to 54 MHz frequency span. The radiofrequency current source fits onto a printed circuit board smaller than 4 cm^2 and consumes less than 1.3 W of power. It is suitable for use in deployable quantum sensors and nuclear-magnetic-resonance systems.
, Restelli, A.
, Fedchak, J.
, Scherschligt, J.
and Eckel, S.
Note: A Radio Frequency Voltage-Controlled Current Source for Quantum Spin Manipulation, Review of Scientific Instruments
(Accessed January 21, 2022)