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author:

姚金聪 (姚金聪.) [1] | 张光飞 (张光飞.) [2] | 陈俊 (陈俊.) [3] (Scholars:陈俊)

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CQVIP

Abstract:

为了提高数字电视发射机的效率,采用一种新型的三路Doherty电路.基于传输线理论和有源负载牵引理论,推导出三路Doherty的工作原理,同时利用ADS设计一个双三路Doherty电路,并用于数字电视发射机.仿真结果表明,该放大器在功率回退9.1dB时,出现第一个效率峰值点,在整个回退范围内具有3个效率峰值点.实测结果表明,在610 MHz中心频率和54 dBm输出功率下,该放大器的效率可达41.2%.

Keyword:

三路Doherty电路 功率放大器 效率峰值点 数字电视发射机

Community:

  • [ 1 ] [姚金聪]福州大学
  • [ 2 ] [张光飞]福州大学
  • [ 3 ] [陈俊]福州大学

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Source :

现代电子技术

ISSN: 1004-373X

CN: 61-1224/TN

Year: 2012

Issue: 3

Volume: 35

Page: 41-44

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 0

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