Electrical Modeling of Spin-Torque Diodes Used As Radio Frequency Detectors: A Step-by-Step Methodology for Parameter Extraction
IEEE transactions on microwave theory and techniques(2023)
摘要
In this article here below, we present an electrical model for nanoscale spintronic radio frequency (RF) detectors called spin-torque diodes (STDs). A complete methodology for model parameter extraction is proposed. An equivalent electrical circuit for STD is derived and includes a modeling of the device resistance nonlinearity together with the STD effect. A detailed step-by-step methodology is presented to extract the model parameters using conventional dc measurements, RF scattering parameters ( $S$ -parameters), continuous wave (CW), and power characterizations. After parameter extraction, a comparison with measurements of a single STD successfully validates the model. Finally, the proposed STD electrical model is used to anticipate the behavior of a two-STD-based RF detector architecture. Simulation results highlight the interest of the proposed modeling approach to investigate suitable RF detector architectures to enhance RF-to-dc conversion efficiency for single or multiband RF detection.
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关键词
Radio frequency,Impedance,Detectors,Resistance,Junctions,Magnetic tunneling,Parameter extraction,Electrical modeling,parameter extraction,radio frequency (RF) detector,RF-to-dc conversion,spin-torque diodes (STDs)
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