研究目的
To design a compact and broadband transformer-coupled power amplifier in a 0.15μm GaAs technology for 5G applications, achieving high output power, efficiency, and linearity without digital pre-distortion.
研究成果
The designed PA achieves a gain of 12.6dB with a fractional bandwidth of 40%, output power of 26.5dBm, and peak PAE of 31% at 28GHz. It supports high data rate 64-QAM signals without digital pre-distortion, demonstrating the effectiveness of transformer-coupled matching networks in GaAs technology.
研究不足
The higher cost of GaAs compared to CMOS technology and the need for careful EM simulation to account for parasitics.
1：Experimental Design and Method Selection:
The design utilizes transformer-coupled matching networks in a
2：15μm GaAs technology for compactness and broadband performance. Sample Selection and Data Sources:
The PA is fabricated and measured using GSG probes, with losses calibrated.
3：List of Experimental Equipment and Materials:
Vector network analyzer, PSG at the input, power meter, oscilloscope for evaluation.
4：Experimental Procedures and Operational Workflow:
Small signal and large signal measurements were conducted, including modulated signal testing with 64-QAM.
5：Data Analysis Methods:
Performance metrics such as output power, PAE, gain, and EVM were analyzed.
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