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

Guohua LIU; Guoxiang ZHOU; Cantianci GUO; Zhiqun CHENG

doi:10.11999/JEIT200564

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

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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

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

doi: 10.11999/JEIT200564 cstr: 32379.14.JEIT200564

Key Laboratory of RF Circuit and System, Ministry of Education, Hangzhou Dianzi University, Hangzhou 310018, China

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

Abstract

Abstract

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.
- Power amplifier,
- Simplified real frequency method,
- Multi-octave,
- Drain efficiency

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References(18)

References

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