• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Interference cancellation for higher harmonics of supply-modulated efficient RF power amplifier systems
【24h】

Interference cancellation for higher harmonics of supply-modulated efficient RF power amplifier systems

机译：电源调制的高效射频功率放大器系统的高次谐波消除干扰

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In building highly efficient transmitters of today, one is forced to sacrifice linearity for efficiency. Some of the highest power amplifier efficiency figures are reported by envelope tracking (ET) amplifiers. These amplifiers can generate strong higher-order harmonics, which can lead to interference with receivers operating at the harmonic frequencies. Using non-linear interference cancellation, we can help to remove the interference being caused in those receivers. This paper looks at the problem of modeling the third and second-order harmonic emission from an ET amplifier. It derives the non-linear kernel for estimating such interference. This kernel has been rigorously expanded to show its correlation with the various harmonics and its effectiveness in predicting the harmonic content. We then set up an envelope amplifier test-bench to capture harmonic signal content and cancel it using the derived kernel model. The experiment yields excellent agreement with theory and provides a validation of the system and concept.
机译：在构建当今的高效发射机中，人们不得不牺牲线性度来提高效率。包络跟踪（ET）放大器报告了一些功率放大器效率最高的数字。这些放大器会产生较强的高次谐波，从而可能干扰以谐波频率工作的接收器。使用非线性干扰消除，我们可以帮助消除那些接收器中引起的干扰。本文着眼于对ET放大器的三阶和二阶谐波发射建模的问题。它推导了用于估计这种干扰的非线性内核。对该内核进行了严格的扩展，以显示其与各种谐波的相关性以及在预测谐波含量方面的有效性。然后，我们建立了一个包络放大器测试平台，以捕获谐波信号内容，并使用派生的内核模型将其消除。该实验与理论非常吻合，并验证了系统和概念。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号