SESSION 5 Front-End Circuits for High-Performance Transceivers.pdf

1、ISSCC 2025SESSION 5Front-End Circuits for High-Performance Transceivers5.1:A GaN SLCG-Doherty-Continuum Power Amplifier Achieving 38%6dB Back-Off Efficiency over 1.35 to 7.6GHz 2025 IEEE International Solid-State Circuits Conference1 of 37A GaN SLCG-Doherty-Continuum Power Amplifier Achieving 38%6dB

2、 Back-Off Efficiency over 1.35 to 7.6GHzGuansheng Lv1,Wenhua Chen1,Xiaofan Chen1,Fei Huang2,Zhenghe Feng11Tsinghua University,Beijing,China2Gaxtrem Technology,Beijing,China5.1:A GaN SLCG-Doherty-Continuum Power Amplifier Achieving 38%6dB Back-Off Efficiency over 1.35 to 7.6GHz 2025 IEEE Internationa

3、l Solid-State Circuits Conference2 of 37Outline Introduction SLCG-Doherty-Continuum Power Amplifier Prototype Implementation Measurement Results Conclusion5.1:A GaN SLCG-Doherty-Continuum Power Amplifier Achieving 38%6dB Back-Off Efficiency over 1.35 to 7.6GHz 2025 IEEE International Solid-State Cir

4、cuits Conference3 of 37Outline Introduction SLCG-Doherty-Continuum Power Amplifier Prototype Implementation Measurement Results Conclusion5.1:A GaN SLCG-Doherty-Continuum Power Amplifier Achieving 38%6dB Back-Off Efficiency over 1.35 to 7.6GHz 2025 IEEE International Solid-State Circuits Conference4

5、 of 37Introduction Complex modulation High peak-to-average ratio(PAPR)Power amplifiers(PAs)must operate in power back-off(PBO)Back-off-efficient(BE)PA are used for high average efficiency78.5%78.5%BE PAClass-B PAPoutEff.5.1:A GaN SLCG-Doherty-Continuum Power Amplifier Achieving 38%6dB Back-Off Effic

6、iency over 1.35 to 7.6GHz 2025 IEEE International Solid-State Circuits Conference5 of 37Introduction2G/3G：1 Ch.4G：4+Ch.5G：32+Ch.0.9 GHz2 GHz3 GHz4 GHz4G 28 GHz39 GHz5G B5G/6G：256+Ch.Freq.2G/3G Wideband B5G/6G m-MIMO systems Wideband compact PAs5.1:A GaN SLCG-Doherty-Continuum Power Amplifier Achievi