Design of Ultra-wideband High Power Amplifier

被引：0
|
作者：
Li Changyou [1 ]
Sun Biao [1 ]
Wang Yong [1 ]
Kang Xiaoke [2 ]
机构：
[1] China Shipbldg Ind Co 723 Inst, Yangzhou 225600, Jiangsu, Peoples R China
[2] Chengdu Space Dtron Commun Technol Co Ltd, Chengdu 610000, Peoples R China
来源：
2019 INTERNATIONAL APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY SYMPOSIUM - CHINA (ACES), VOL 1 | 2019年
关键词：
ultra-wideband; solid state; multistage equalization; power allocation / synthesis;
D O I：
10.23919/aces48530.2019.9060492
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：
In order to meet the development of modern electromagnetic countermeasures system, An ultra-wideband high power amplifier covering 6 similar to 18GHz has been designed, which full band power is larger than 50W. The amplification chain is composed of two stage drive, power allocation, final amplification and power synthesis network and the power allocation / synthesis unit is implemented by Wilkinson circuits. In order to satisfy the requirement of wide input power covered 5 similar to+5dBm, the multistage equalization circuit has been used under the premise of high quality noise squelch. The measured results show that the output power of the full frequency band is more than 50W, the working efficiency is about 15%, and the second harmonic suppression is more than 12dBc. Compared with the same type vacuum tube system power amplifier, it has the obvious advantages of low DC power consumption, compact circuit structure and high reliability. The successful development of this power amplifier has laid an important foundation for the solid state upgrading of vacuum power amplifier
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页数：2
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