A high-gain, 28GHz, 200kW gyroklystron amplifier

被引：9
|
作者：
Choi, JJ [1 ]
机构：
[1] Kwangwoon Univ, Dept Radio Engn, High Power Microwave Engn Lab, Seoul 139701, South Korea
来源：
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 1998年 / 19卷 / 12期
关键词：
Radiation Power; Power Amplifier; High Gain; Numerical Code; Large Signal;
D O I：
10.1023/A:1021719311152
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：
A design study of a high efficiency/gain gyroklystron amplifier is performed to demonstrate amplified radiation power of 200 kW operating at 28 GHz. A key design feature of the present gyroklystron amplifier is that the amplifier is designed to be high gain so that it can be saturated by a low power solid state power amplifier. A non-linear, time-dependent, large signal numerical code is used to predict tube performance. Simulations predict that a stable amplifier radiation power of 214 kW is produced with a saturated gain of 54 dB, an electronic efficiency of 37%, and a frequency bandwidth of 0.3% from a five-cavity gyroklystron amplifier. The amplifier gain is found to be very sensitive to a beam velocity spread.
引用
收藏
页码：1681 / 1691
页数：11
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