SEMICONDUCTOR INTEGRATED CIRCUITS

W-band GaN MMIC PA with 257 mW output power at 86.5 GHz

Peng Xu, Xubo Song, Yuanjie Lü, Yuangang Wang, Shaobo Dun, Jiayun Yin, Yulong Fang, Guodong Gu, Zhihong Feng and Shujun Cai

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 Corresponding author: Peng Xu, Email: maxuanxupeng@126.com

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Abstract: A three-stage W-band GaN monolithic microwave integrated circuit power amplifier (MMIC PA) is reported. In order to manage coupling effects between all the parts of the W-band MMIC, all matching and bias networks have been first optimized using circuit simulating software and then systematically simulated on 3D full-wave electromagnetic simulator. The fabricated MMIC PA achieves a 257 mW output power at 86.5 GHz in continuous-wave mode, with an associated power added efficiency of 5.4% and an associated power gain of 6.1 dB. The power density is 459 mW/mm. Moreover, the MMIC PA offers over 100 mW in the 83-90 GHz bandwidth. Those performances were measured at drain bias of 12 V.

Key words: W-bandMMICGaNpower amplifier



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Fig1.  Photograph of the W-band GaN MMIC PA.

Fig2.  Small signal performance of three-stage W-band GaN MMIC measured at a drain bias of 12 V,and gate bias of $-3.5$ V.

Fig3.  Output power versus frequency of W-band GaN MMIC measured in CW mode at a drain bias of 12 V and input RF power of 63~mW.

Fig4.  Power-out versus power-in performance of W-band GaN MMIC measured at a frequency of 86.5 GHz and a bias of 12 V.

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    Received: 05 January 2015 Revised: Online: Published: 01 August 2015

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      Peng Xu, Xubo Song, Yuanjie Lü, Yuangang Wang, Shaobo Dun, Jiayun Yin, Yulong Fang, Guodong Gu, Zhihong Feng, Shujun Cai. W-band GaN MMIC PA with 257 mW output power at 86.5 GHz[J]. Journal of Semiconductors, 2015, 36(8): 085009. doi: 10.1088/1674-4926/36/8/085009 P Xu, X B Song, Y Lü, Y G Wang, S B Dun, J Y Yin, Y L Fang, G D Gu, Z H Feng, S J Cai. W-band GaN MMIC PA with 257 mW output power at 86.5 GHz[J]. J. Semicond., 2015, 36(8): 085009. doi: 10.1088/1674-4926/36/8/085009.Export: BibTex EndNote
      Citation:
      Peng Xu, Xubo Song, Yuanjie Lü, Yuangang Wang, Shaobo Dun, Jiayun Yin, Yulong Fang, Guodong Gu, Zhihong Feng, Shujun Cai. W-band GaN MMIC PA with 257 mW output power at 86.5 GHz[J]. Journal of Semiconductors, 2015, 36(8): 085009. doi: 10.1088/1674-4926/36/8/085009

      P Xu, X B Song, Y Lü, Y G Wang, S B Dun, J Y Yin, Y L Fang, G D Gu, Z H Feng, S J Cai. W-band GaN MMIC PA with 257 mW output power at 86.5 GHz[J]. J. Semicond., 2015, 36(8): 085009. doi: 10.1088/1674-4926/36/8/085009.
      Export: BibTex EndNote

      W-band GaN MMIC PA with 257 mW output power at 86.5 GHz

      doi: 10.1088/1674-4926/36/8/085009
      Funds:

      Project supported by the National Natural Science Foundation of China (No. 61306113).

      More Information
      • Corresponding author: Email: maxuanxupeng@126.com
      • Received Date: 2015-01-05
      • Accepted Date: 2015-03-10
      • Published Date: 2015-01-25

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