دانلود رایگان مقاله انگلیسی استفاده از آشکارسازهای توان SiGe HBT برای حس انتقال خطای تک رخداد در مدارهای RF - نشریه IEEE

Abstract

This paper demonstrates the use of an RF power detector to sense the occurrence of single-event transients (SETs) in RF circuits and systems. The detector was connected to a low-noise amplifier (LNA), and the relationship between the detector output and the LNA transients was investigated via two-photon absorption, pulsed-laser testing, together with mixedmode TCAD simulations. The response of the detector shows a strong correlation with the RF power of the generated SET. An analytical expression for the detector output is derived and utilized to fit the data. The effects of parameters affecting circuit performance on the detector response to SETs are explored using calibrated TCAD mixed-mode simulations, and design tradeoffs are presented. Finally, a solution to distinguish between transients generated in the detector from those generated in the circuit being monitored is proposed and verified in simulation. The use of detectors to monitor SETs in RF systems could lead to judicious deployment of detection-driven SET mitigation techniques.

VII. CONCLUSION

This paper proposed the use of an RF power detector to sense the occurrence of SETs in RF circuits and systems. It was shown through TPA experiments that the proposed circuit can be used to detect SETs in the LNA. Furthermore, the output of the detector was shown to yield information about the RF power of the SET, and also detect the relative level of SETs with respect to the input signal. An expression for the detector output voltage as a function of the LNA SET power was derived and resulted in an excellent fit to experimental data. The circuit design tradeoffs were explored using experiments and TCAD simulations, with the main tradeoff being between transient responsivity and suppression of the RF signal carrying data. A solution to distinguish SETs on the RF system of interest and the detector itself that uses a pseudo-TMR approach was demonstrated using mixed-mode TCAD simulations. Utilizing power detectors for sensing SETs can enable the deployment of detection-driven mitigation techniques, as well as the development of more intricate mitigation techniques that depend on the severity of the detected SET.