一个动态负载调制功率放大器,具有铁电基调节匹配网络
Pavel Turalchuk1, Irina Filipiuk1, Bayazet Iskakov1
1Department of Microelectronics and Radio Engineering, St. Petersburg Electrotechnical University "LETI", 197022 St. Petersburg, Russia.
Sensors (Basel, Switzerland)
|December 17, 2024
概括
本研究介绍了一种使用铁电调节匹配网络的动态负载调节功率放大器. 它在2.5GHz信号的8dB后退效率达到50%以上的效率,提高了线性和能源效率.
科学领域:
- 电气工程 电气工程
- 无线电频率 (RF) 工程
- 材料科学 材料科学 材料科学
背景情况:
- 功率放大器 (PA) 对下一代通信系统至关重要,影响线性和能源效率.
- 高峰到平均功率比率 (PAPR) 信号对实现线性性和效率构成设计挑战,特别是在回退条件下.
研究的目的:
- 介绍一款新型动态负载调制功率放大器 (DLMPA) 的模拟和测量结果.
- 调查使用铁电调节匹配网络以提高2.5 GHz的PA性能.
- 在不同的输入功率水平下优化PA线性和效率.
主要方法:
- 设计并模拟了一个DLMPA,其中包含一个在2.5GHz运行的铁电调匹配网络.
- 实验验证PA的性能,在铁电元件上使用不同的控制电压.
- 开发并测试了一个偏差调制器,以根据输入功率动态调整晶体管的负载.
主要成果:
- DLMPA在8dB的后退时显示出至少50%的效率,在峰值功率时显示出超过60%的效率.
- 性能在8dB的后退关闭下得到证实,用于铁电元件的可调节控制电压.
- 确定了最佳偏差调制器响应,显示其对输出功率线性的影响.
结论:
- 拟议的基于铁电的DLMPA有效地管理高PAPR信号,增强线性和能源效率.
- 这项技术对未来需要高性能PA的无线通信系统具有重大前景.
- 动态负载调制与铁电调节相结合,为高效和线性功率放大提供了可行的解决方案.
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