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Spin torque oscillator based BFSK modulation

机译:基于自旋转矩振荡器的BFSK调制

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摘要

This work presents a spin torque nano-oscillator (STNO) based binary frequency shift keying (BFSK) modulation schema implemented on a printed circuit board (PCB). Maximal input data rate reaches 20 Mbit/s. Depending on the STNO used, carrier frequency can range from 1 to 10 GHz. Both DC and AC currents flowing through the STNO can be tuned between 0 to 4 mA. Using one magnetic tunnel junction (MTJ) STNO, a 380 MHz frequency shift around the center frequency 9 GHz was observed, when the modulated current was toggled between 1.06 mA and 1.2 mA at a rate of 20 Mbit/s. The PCB with a size of 50 × 55 mm consumes maximal 130 mA at a 5 V supply. This is the first work demonstrating that the STNOs are applicable for BFSK modulation on the wireless application level.
机译:这项工作提出了在印刷电路板(PCB)上实现的基于自旋转矩纳米振荡器(STNO)的二进制频移键控(BFSK)调制方案。最大输入数据速率达到20 Mbit / s。取决于所使用的STNO,载波频率的范围可以从1到10 GHz。流过STNO的DC和AC电流都可以在0到4 mA之间调整。使用一个磁隧道结(MTJ)STNO,当调制电流以20 Mbit / s的速率在1.06 mA和1.2 mA之间切换时,观察到围绕中心频率9 GHz的380 MHz频移。尺寸为50×55 mm的PCB在5 V电源下最大消耗130 mA的电流。这是证明STNO适用于无线应用级别的BFSK调制的第一项工作。

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