一个5.8 GHz 1.8 V +20 dBm 32.5%的PAE功率放大器用于短距离无线WPT应用
Myonggwan Kim1, Reza E Rad2, Sungjin Kim1,2
1Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
Sensors (Basel, Switzerland)
|June 10, 2023
概括
本研究介绍了用于无线输电的5.8GHz功率放大器,实现了20dBm的输出功率和32.5%的功率添加效率 (PAE). 这种高效的设计适用于物联网和医疗应用.
科学领域:
- 电气工程 电气工程
- 无线电频率 (RF) 工程
- 半导体设备物理 半导体设备物理
背景情况:
- 无线无线电力传输对于物联网 (IoT) 和医疗植入物等应用至关重要.
- 有效的功率放大器 (PA) 对于实现可靠的无线功率传输至关重要.
研究的目的:
- 设计和描述一个5.8GHz差分级代码功率放大器,用于无线无线电力传输.
- 为了优化功率放大器在有限的供应电压下获得高输出功率和效率.
主要方法:
- 采用了带有两个活跃阶段的差分级代码功率放大器架构.
- 集成了一个定制设计的变压器,以实现单端输出和提高性能.
- 该放大器使用180nm CMOS 工艺制造,并针对功率匹配和功率增加效率 (PAE) 进行了优化.
主要成果:
- 定制变压器在5.8 GHz时显示了11.6和11.2的高质量系数 (Q).
- 制造的放大器实现了出色的输入 (-14.7 dB) 和输出 (-29.7 dB) 匹配.
- 在1.8V供应电压下测量出20dBm的输出功率和32.5%的PAE峰值.
结论:
- 开发的5.8GHz功率放大器展示了适用于无线功率传输应用的高性能.
- 该设计的效率和输出功率使其适用于可植入设备和与天线阵列的集成.
- 为了与现有文献进行绩效比较,引入了优点图 (FOM).
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01:14BJT Amplifiers
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01:20The Maximum Power Transfer Theorem
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