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p-n-p-Based RF Switches for the Mitigation of Single-Event Transients in a Complementary SiGe BiCMOS Platform

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The benefits of using p-n-p silicon–germanium (SiGe) heterojuction bipolar transistors (HBTs) in radio frequency (RF) circuits for the mitigation of single-event transients (SETs) have been investigated. As a representative circuit… Click to show full abstract

The benefits of using p-n-p silicon–germanium (SiGe) heterojuction bipolar transistors (HBTs) in radio frequency (RF) circuits for the mitigation of single-event transients (SETs) have been investigated. As a representative circuit example, p-n-p SiGe-HBT RF single-pole single-throw (SPST) switches have been designed in a complementary SiGe BiCMOS platform. The fabricated p-n-p-based RF switches provide comparable RF performance to n-p-n-based switches. In terms of SET transient peaks and duration, the p-n-p SiGe HBT RF switches exhibit a significant reduction in SET sensitivity compared with their n-p-n counterparts. In the frequency domain, the p-n-p switches show fewer low-frequency spurs than that of the n-p-n switches. In addition, inverse-mode p-n-p SiGe HBT switches provide the best overall SET response among all RF SPST switches investigated.

Keywords: event transients; mitigation single; sige; based switches; single event; complementary sige

Journal Title: IEEE Transactions on Nuclear Science
Year Published: 2018

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