期刊
IEEE ELECTRON DEVICE LETTERS
卷 36, 期 1, 页码 17-19出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2014.2367093
关键词
AlInN/GaN on Si; HEMTs; large-signal; load-pull characterization
资金
- Swiss National Science Foundation [200020_147142]
- Swiss National Science Foundation (SNF) [200020_147142] Funding Source: Swiss National Science Foundation (SNF)
We report the first 94-GHz (W-band) large-signal performance of AlInN/GaN high-electron-mobility transistors (HEMTs) grown on high-resistivity silicon (111) substrates. A maximum output power density of 1.35 W/mm and peak power-added-efficiency of 12% are measured at 94 GHz. The devices exhibit a dc maximum current drain density of 1.6 A/mm and a peak transconductance of 650 mS/mm. In small-signal operation, cutoff frequencies f(T/fMAX) = 141/232 GHz are achieved. The large-signal performance of our AlInN/GaN HEMTs on silicon at 94 GHz stills lags the best reported results one on SiC substrates but nevertheless confirms the tremendous interest of GaN-on-Si HEMT technology for low-cost millimeter-wave electronic applications.
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