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This paper presents a coupled electrothermal, electromagnetic, and physical model for microwave power field-effect transistors (FETs). The resulting model is used to investigate large gate periphery pseudomorphic high electron-mobility transistor devices. The contribution to the output power of each cell of the transistor is simulated, as well as their… (More)
This paper proposes an algorithm for estimating on-line the rollover risk of huge machines moving on natural ground. The approach is based on the reconstruction of lateral load transfer thanks to an observer, able to take into account terrain specificities (grip conditions and geometry). Capabilities are tested through experiments using a grape harvester.
This paper presents enhancements to the design and implementation of microwave power FETs. The improvements in microwave performance are achieved by optimizing the FET structure and metallization using electromagnetic simulation, followed by fabrication. This approach allows the investigation of the contribution of individual FET fingers, maximizing their… (More)