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The 1.2 kV 4H-SiC OCTFET: A New Cell Topology with Improved High Frequency Figures-of-Merit
摘要： A 1.2 kV rated 4H-SiC OCTFET device with octagonal-cell topology is proposed and experimentally demonstrated for the first time. The device was first optimized using TCAD numerical simulations. Devices were then successfully fabricated in a 6 inch foundry. From the measured electrical characteristics, the OCTFET is demonstrated to have 1.4× superior HF-FOM [Ron×Qgd], and 2.1× superior HF-FOM [Ron×Cgd] compared with the conventional linear-cell MOSFET.
关键词： Silicon carbide,ALL,Octagonal,Qgd,HF-FOMs,Cell,Cgd,MOSFET,4H-SiC
更新于2025-09-23 15:23:52
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[IEEE 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) - Rome, Italy (2019.6.17-2019.6.20)] 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) - Bend Loss Properties of the Octagonal-core and Nodeless Large-mode-area Anti-resonant Hollow-core Fibers
摘要： We report the results of the numerical and experimental comparison of bend loss properties for two di?erent silica-based anti-resonant hollow-core ?bers (AR-HCFs) at the wavelength of 2.25 μm with the mode area larger than 1000 μm2. The ?rst ?ber has a negative curvature of the core-cladding boundary formed by eight touching trapezoidal capillaries and the second one has the nodeless structure designed by six non-touching round capillaries.
关键词： octagonal-core,bend loss,large-mode-area,anti-resonant hollow-core ?bers,nodeless
更新于2025-09-23 15:21:01
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Low-Loss and Dispersion-Flattened Octagonal Porous Core PCF for Terahertz Transmission Applications
摘要： In order to make the direct transmission more effective, we have intended an octagonal shape cladding design in this paper. The minimum resultant effective material loss obtained from our proposed photonic crystal fiber is 0.007 cm-1 at 0.5 THz is very effective. The proposed design gives an ultra-high birefringence of 0.06 with an effective area of about 4 9 10-6 m2, a core power fraction of 70% for 290 lm core diameter with a core porosity of 80% at 1.6 THz frequency and closely zero flattened dispersion of variation of 0.3 ± 0.1 ps/THz/cm at a wide frequency range of 0.7–2.1 THz.
关键词： Terahertz,Core porosity,Effective material loss,Octagonal core,Confinement loss,Dispersion
更新于2025-09-23 15:19:57