分析和设计的新型五声峰级EF类功率放大器
Ehsan Sepahvand1, Akram Sheikhi2
1Electrical Engineering Department, Faculty of Engineering, Lorestan University, Khorramabad, 68151-44316, Iran.
Scientific reports
|March 23, 2025
概括
这项研究介绍了高效率的EF类功率放大器 (PA) 的新设计,可以最大限度地降低电感. 新型负载网络实现了宽带宽和高效率,这对于先进的射频应用至关重要.
科学领域:
- 电气工程 电气工程
- 无线电频率 (RF) 工程
- 电力电子 电力电子 电力电子
背景情况:
- 高效功率功率放大器 (PA) 对于现代无线通信系统至关重要.
- 传统的EF类电源因其负载网络的强电感要求而面临局限性.
- 优化和声控制对于提高PA效率和性能至关重要.
研究的目的:
- 介绍一款新型高效率EF类功率放大器的分析设计方法.
- 为EF类电力发电机组引入新的一次性元件和输电线路负载网络.
- 为了证明一个PA设计,克服电感度的限制,并实现高效率.
主要方法:
- 开发了类EF PA的分析设计方法.
- 提出了两个新的负载网络拓:一个使用一次性元素,另一个使用输电线路.
- 保证负载网络满足基本和多重频率 (2至5) 的阻抗要求.
- 设计和制造了两个验证原型,一个为每个负载网络类型.
主要成果:
- 拟议的Class-EF PA设计实现了2的低规范开关电压.
- 新的负载网络同时满足从基本到第五的阻抗匹配要求.
- 实现了1.9至2.9GHz的广泛运行带宽.
- 测量结果显示排水效率在70-83%之间,输出功率>39.5dBm,功率增益>10dB.
结论:
- 提出的分析设计方法和新型负载网络使高效率的EF类PA具有降低的电感.
- 拟议的PA设计为实现宽带宽和高性能提供了一个实际的解决方案.
- 进一步的波调可能会增强电压/电流波形,尽管它可能会引入波纹.
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