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Volume 43 Issue 6
Jun.  2021
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Guohua LIU, Guoxiang ZHOU, Cantianci GUO, Zhiqun CHENG. Design of Ultra-wideband Power Amplifier Based on Modified Simplified Real Frequency Technology[J]. Journal of Electronics & Information Technology, 2021, 43(6): 1617-1621. doi: 10.11999/JEIT200564
Citation: Guohua LIU, Guoxiang ZHOU, Cantianci GUO, Zhiqun CHENG. Design of Ultra-wideband Power Amplifier Based on Modified Simplified Real Frequency Technology[J]. Journal of Electronics & Information Technology, 2021, 43(6): 1617-1621. doi: 10.11999/JEIT200564

Design of Ultra-wideband Power Amplifier Based on Modified Simplified Real Frequency Technology

doi: 10.11999/JEIT200564
Funds:  The National Natural Science Foundation (91938201, 61871169), Zhejiang Provincial Natural Science Foundation (LZ20F010004)
  • Received Date: 2020-07-26
  • Rev Recd Date: 2020-09-24
  • Available Online: 2020-09-26
  • Publish Date: 2021-06-18
  • A multi-octave power amplifier is proposed based on the improved simplified real frequency method. Combined with the load-pull technology, the optimal impedance of the transistor is analyzed. By improving the optimization objective and error function in the improved simplified real frequency method, the optimal impedance of multiple frequency points in the frequency band is analyzed. The output matching circuit of the power amplifier is designed. The broadband matching circuit is optimized, and the working bandwidth of the amplifier is improved. The test results show that the saturation output power reaches 42.5 dBm and the saturation drain efficiency is 64%~75% within the frequency band of 0.5~2.7 GHz.
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