Fig. 5: Voltage rectification with four unsynchronized and synchronized oscillators. | Nature Communications

Fig. 5: Voltage rectification with four unsynchronized and synchronized oscillators.

From: Electrically connected spin-torque oscillators array for 2.4 GHz WiFi band transmission and energy harvesting

Fig. 5: Voltage rectification with four unsynchronized and synchronized oscillators.

a, b Zero dc bias rectification at Prf = −10 dBm in parallel at a magnetic field of 180 Oe and series connections at a magnetic field of 150 Oe, respectively. c Enhancement in the rectified voltage at 2.4 GHz with increasing the number of oscillators at zero dc bias and Prf = −10 dBm. d, e Rectification results of four synchronized oscillators at Prf = −10 dBm in parallel (d) at Idc = 3.4 mA and H = 140 Oe and in series (e) at Idc = 1.3 mA and H = 110 Oe. f Enhancement of the rectified voltage at 2.4 GHz with increasing the number of oscillators synchronized with dc bias.

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