We present 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 cm2 and consumes less than 1.3 W of power. It is suitable for use in deployable quantum sensors and nuclear magnetic resonance systems.

中文翻译：

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用于量子自旋操纵的射频压控电流源

我们提出了一种宽带、电压控制的电流源，它很容易与射频磁场线圈集成。我们的设计使用电流反馈来补偿射频天线的频率相关阻抗。我们能够在 300 kHz 至 54 MHz 的频率范围内提供大于 100 mA 的峰值电流。射频电流源安装在小于 4 cm2 的印刷电路板上，功耗小于 1.3 W。它适用于可部署的量子传感器和核磁共振系统。