High Efficiency Power Amplifiers for Modern Mobile Communications: The Load-Modulation Approach

被引：30
作者：
Ramella, Chiara [1 ]
Piacibello, Anna [1 ]
Quaglia, Roberto [2 ]
Camarchia, Vittorio [1 ]
Pirola, Marco [1 ]
机构：
[1] Politecn Torino, Dept Elect & Telecommun, I-10129 Turin, Italy
[2] Cardiff Univ, Ctr High Frequency Engn, Cardiff CF10 3AT, S Glam, Wales
来源：
ELECTRONICS | 2017年 / 6卷 / 04期
关键词：
high power amplifiers; high frequency transmitters; wireless communications; high efficiency; Doherty power amplifier; Chireix outphasing amplifier; load modulated balanced amplifier; CREST FACTOR REDUCTION; DOHERTY AMPLIFIER; BROAD-BAND; LINEAR AMPLIFICATION; ENHANCED EFFICIENCY; DESIGN; COMPENSATION; ARCHITECTURE; TECHNOLOGY; BANDWIDTH;
D O I：
10.3390/electronics6040096
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Modern mobile communication signals require power amplifiers able to maintain very high efficiency in a wide range of output power levels, which is a major issue for classical power amplifier architectures. Following the load-modulation approach, efficiency enhancement is achieved by dynamically changing the amplifier load impedance as a function of the input power. In this paper, a review of the widely-adopted Doherty power amplifier and of the other load-modulation efficiency enhancement techniques is presented. The main theoretical aspects behind each method are introduced, and the most relevant practical implementations available in recent literature are reported and discussed.
引用
收藏
页数：29
相关论文
共 132 条
  • [41] Colantonio Paolo., 2009, High Efficiency RF and Mircowave Solid State Power Amplifiers
  • [42] LINEAR AMPLIFICATION WITH NONLINEAR COMPONENTS
    COX, DC
    [J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 1974, CO22 (12) : 1942 - 1945
  • [43] Cripps S. C, 2002, ADV TECHNIQUES RF PO
  • [44] Doherty Goes Digital
    Darraji, Ramzi
    Mousavi, Pedram
    Ghannouchi, Fadhel M.
    [J]. IEEE MICROWAVE MAGAZINE, 2016, 17 (08) : 41 - 51
  • [45] Digitally Equalized Doherty RF Front-End Architecture for Broadband and Multistandard Wireless Transmitters
    Darraji, Ramzi
    Kwan, Andrew K.
    Ghannouchi, Fadhel M.
    Helaoui, Mohamed
    [J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2015, 63 (06) : 1978 - 1988
  • [46] Mitigation of Bandwidth Limitation in Wireless Doherty Amplifiers With Substantial Bandwidth Enhancement Using Digital Techniques
    Darraji, Ramzi
    Ghannouchi, Fadhel M.
    Helaoui, Mohamed
    [J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2012, 60 (09) : 2875 - 2885
  • [47] RF/DSP Codesign Methodology of Enhanced Doherty Amplifiers
    Darraji, Ramzi
    Ghannouchi, Fadhel M.
    [J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2012, 59 (04) : 219 - 223
  • [48] Digital Doherty Amplifier With Enhanced Efficiency and Extended Range
    Darraji, Ramzi
    Ghannouchi, Fadhel. M.
    [J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2011, 59 (11) : 2898 - 2909
  • [49] A Dual-Input Digitally Driven Doherty Amplifier Architecture for Performance Enhancement of Doherty Transmitters
    Darraji, Ramzi
    Ghannouchi, Fadhel M.
    Hammi, Oualid
    [J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2011, 59 (05) : 1284 - 1293
  • [50] A new high-efficiency power amplifier for modulated waves
    Doherty, WH
    [J]. BELL SYSTEM TECHNICAL JOURNAL, 1936, 15 : 469 - 475
12345678910