Ka-band wideband power amplifier MMIC using capacitive coupled matching structure
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University of Electronic Science and Technology of China

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    Abstract:

    Adopting the capacitive coupled matching structure, a Ka-band wideband three-stage power amplifier (PA) MMIC was designed by 0.1μm GaAs pHEMT process in this paper. To facilitate the design of wideband PA, a set of formulas was proposed to analyze this matching structure. This structure achieves wide operating band and high power-added efficiency (PAE) simultaneously in the presented PA. The measured saturation PAE is upon 30% over 32~40 GHz with 20 dBm output power and more than 15.5 dB power gain, which demonstrates the effectiveness of this design skill.

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LIN Hao-Dong, LIU Yu, DONG Jun, YUAN Ye, YANG Tao, XIE Xiao-Qiang. Ka-band wideband power amplifier MMIC using capacitive coupled matching structure[J]. Journal of Infrared and Millimeter Waves,2016,35(5):529~533

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History
  • Received:January 06,2016
  • Revised:March 11,2016
  • Adopted:March 15,2016
  • Online: October 05,2016
  • Published: