Doherty Type High Power Amplifier With 33% Efficiency

被引：0
|
作者：
Sloushch, Ilia [1 ]
Levine, Ely [1 ]
机构：
[1] AFEKA Tel Aviv Coll Engn, 38 Mivza Kadesh St, IL-69107 Tel Aviv, Israel
来源：
2011 IEEE INTERNATIONAL CONFERENCE ON MICROWAVES, COMMUNICATIONS, ANTENNAS AND ELECTRONIC SYSTEMS (COMCAS 2011) | 2011年
关键词：
Power Amplifiers; Wireless Base Stations; Efficiency of High Power Microwave Amplifiers;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This work describes the design of a two-way Doherty type Power Amplifier, using LDMOS transistors, for base station wireless transceivers in the frequency range of 2.5 - 2.7 GHz. Two of the main requirements of this amplifier are high efficiency and good linearity, which are always in conflict. The Doherty configuration, composed of a main amplifier and a peaking amplifier offers a reasonable tradeoff between the two requirements. A prototype amplifier based on simulations has been built and tested, including the transistors characterization. Efficiency of 33% over the full band of frequencies, with good linearity till output power of 42 dBm has been demonstarated.
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页数：4
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