一种低静态电流3.3V工作线性MMIC功率放大器，用于5 GHz WLAN应用

IEEE MTT-S International Microwave Symposium Digest, 2003 Pub Date : 2003-06-08 DOI:10.1109/MWSYM.2003.1212507

J.H. Kim, Y. Noh, C. Park

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引用次数: 16

摘要

我们报道了一种用于无线局域网应用的5 GHz线性InGaP/GaAs HBT单片微波集成电路(MMIC)功率放大器。在+3.3V单电源下，采用有源偏置电路，三级功率放大器工作在103 mA - AB类模式的低静态电流下，总电流为196(194)mA，输出功率为18 dBm, PAE(功率附加效率)为9.7% (5.25(5.15)GHz。该功率放大器在5.25(5.15/5.85)GHz时的功率增益为19.6 (17.8/18.5)dB, 1-dB压缩点(P/sub 1/dB)为26(25/25)dBm, PAE为27.8(25.4/20)%。在5.15和5.85 GHz之间的频率范围内，测量到的三阶IMD(互调失真)在3db后退时小于-25 dBc，在5db后退时小于-30 dBc。

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A low quiescent current 3.3V operation linear MMIC power amplifier for 5 GHz WLAN applications

We report a 5 GHz linear InGaP/GaAs HBT monolithic microwave integrated circuit (MMIC) power amplifier for wireless LAN applications. The three-stage power amplifier operates with 103 mA - low quiescent current of Class AB mode using active bias circuit under a single supply of +3.3V A total current of 196(194) mA is consumed with an output power of 18 dBm and PAE (power-added efficiency) of 9.7% at 5.25(5.15) GHz. The power amplifier exhibits a power gain of 19.6 (17.8/18.5) dB, 1-dB compression point (P/sub 1/dB) of 26(25/25) dBm, and PAE of 27.8(25.4/20) % at 5.25(5.15/5.85) GHz. Measured third-order IMD(intermodulation distortion) is less than -25 dBc at 3 dB back-off and less than -30 dBc at 5 dB back-off from P/sub 1/dB for the frequency range between 5.15 and 5.85 GHz.

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IEEE MTT-S International Microwave Symposium Digest, 2003

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