放大器的新型谐波匹配网络的研究与实现

朱弘旭

doi:10.3788/YJYXS20163107.0703

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放大器的新型谐波匹配网络的研究与实现

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- 放大器的新型谐波匹配网络的研究与实现
- Research and realization of a new type harmonic matching network for amplifier
- 液晶与显示 2016年31卷第7期页码：703-707
- 作者机构：
  
  吉林大学珠海学院, 广东珠海 519041
- 作者简介：
  
  朱弘旭(1986-),女,山西大同人,硕士,主要从事通信与电子技术以及微波方面的研究。E-mail:706769837@qq.com
- 基金信息：
  
  吉林省重点科技攻关项目(No.20150204039GX);广东省省级科技计划项目(No.2013B010101020);Supported by Key Scientific Research Project of Jilin Province(No. 20150204039GX);Supported by Provincial Science and Technology Plan Projects of Guangdong Province(No.2013B010101020)
- DOI：10.3788/YJYXS20163107.0703
  中图分类号： TP394.1;TH691.9
- 收稿日期：2015-11-30，
  
  录用日期：2016-2-25，
  
  纸质出版日期：2016-07
- 稿件说明：
移动端阅览
朱弘旭. 放大器的新型谐波匹配网络的研究与实现[J]. 液晶与显示, 2016,31(7):703-707.

Hong-xu ZHU. Research and realization of a new type harmonic matching network for amplifier[J]. Chinese journal of liquid crystals and displays, 2016, 31(7): 703-707.
朱弘旭. 放大器的新型谐波匹配网络的研究与实现[J]. 液晶与显示, 2016,31(7):703-707. DOI： 10.3788/YJYXS20163107.0703.

Hong-xu ZHU. Research and realization of a new type harmonic matching network for amplifier[J]. Chinese journal of liquid crystals and displays, 2016, 31(7): 703-707. DOI： 10.3788/YJYXS20163107.0703.

摘要

在现代通信系统中，功率放大器起着重要的作用并消耗大量的功率，因此，提高放大器效率对于节约整个系统的能量是尤为重要的。本文的目标是找到放大器在谐波频率处的匹配阻抗，并最终构建放大器的谐波匹配网络，以使放大器达到其最高效率。本文采用了负载牵引技术，使用自动控制调节器对阻抗进行控制。首先对自动调谐器进行校准，得出其内部的不同坐标与相应阻抗的对应关系。然后通过对自动调谐器的控制来控制和改变二次谐波和三次谐波的负载阻抗，找到谐波匹配阻抗以使放大器在基频的效率达到最大。最终，根据谐波匹配阻抗来构建放大器的谐波匹配网络。实验结果表明：通过过谐波匹配，可以使放大器的效率提高2.13%。采用本文所使用的方法，放大器的功率提高了2.13%，实现了通过谐波匹配网络来提高放大器效率的目标，证明了本文所采用的方法的可行性。

Abstract

In communication systems

power amplifiers (PAs) play an important role and consume large amount of power. As a consequence

the enhancement of amplifier efficiency is significantly important for saving energy. The goal for this paper is to find the matching impedances of harmonics and build a matching network for optimum efficiency performance of an amplifier. The load pull technique is applied in this paper to control the impedances with automatically controlled tuners. Firstly

a calibration of the automatically tuners is made to get the correspondence of tuner positions and impedance. Then the tuners are used to control and change the load impedances at 2

and 3

harmonics for maximum efficiency performance of an amplifier at fundamental frequency and finally to build a matching network according to the matching impedances at harmonics. Experimental results indicate that the efficiency of the amplifier with harmonic matching can be improved 2.13%. With the method implemented in this paper

the efficiency of the amplifier was improved 2.13%

it realized the goal to improve the efficiency of an amplifier with harmonic. It proves the feasibility of the method investigated in this paper.

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Keywords

references

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