J. Semicond. > 2008, Volume 29 > Issue 7 > 1354-1356

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An 8W X Band AlGaN/GaN Power HEMT

Liu Guoguo, Zheng Yingkui, Wei Ke, Li Chengzhan, Liu Xinyu and He Zhijing

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Abstract: AlGaN/GaN HEMTs at the X band based on homemade SiC substrates and homemade epi-layers are first reported.A 0.35μm gate length,1mm gate width microwave power device is produced with a gate-connected field plate.The power device exhibits a maximum drain current density as high as 0.83A/mm and a peak extrinsic transconductance of 236mS/mm.A unity current gain cutoff frequency(fT) of 30GHz and a power gain cutoff frequency of 31GHz are obtained.The device biased at a drain voltage of 40V demonstrates a continuous wave saturated output power of 8W with a gain of 4.9dB and a power-added efficiency of 45% at 8GHz.

Key words: AlGaN/GaNHEMTmicrowave powergate-connected field plate

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    Received: 18 August 2015 Revised: 20 December 2007 Online: Published: 01 July 2008

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      Liu Guoguo, Zheng Yingkui, Wei Ke, Li Chengzhan, Liu Xinyu, He Zhijing. An 8W X Band AlGaN/GaN Power HEMT[J]. Journal of Semiconductors, 2008, In Press. Liu G G, Zheng Y K, Wei K, Li C Z, Liu X Y, He Z J. An 8W X Band AlGaN/GaN Power HEMT[J]. J. Semicond., 2008, 29(7): 1354.Export: BibTex EndNote
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      Liu Guoguo, Zheng Yingkui, Wei Ke, Li Chengzhan, Liu Xinyu, He Zhijing. An 8W X Band AlGaN/GaN Power HEMT[J]. Journal of Semiconductors, 2008, In Press.

      Liu G G, Zheng Y K, Wei K, Li C Z, Liu X Y, He Z J. An 8W X Band AlGaN/GaN Power HEMT[J]. J. Semicond., 2008, 29(7): 1354.
      Export: BibTex EndNote

      An 8W X Band AlGaN/GaN Power HEMT

      • Received Date: 2015-08-18
      • Accepted Date: 2007-10-30
      • Revised Date: 2007-12-20
      • Published Date: 2008-08-01

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