A gyrotron-traveling-wave tube amplifier experiment with a ceramic loaded interaction region
A gyrotron-traveling-wave tube amplifier experiment with a ceramic loaded interaction region
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DOI：
10.1109/tps.2002.801650
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发表时间：
2002-06-01
影响因子：
1.5
通讯作者：
Wood, FN
中科院分区：
文献类型：
--
作者：
Garven, M;Calame, JP;Wood, FN
介绍了一种工作在回旋基频TE01模的35 GHz回旋行波管放大器的设计和实验研究。本实验中的相互作用电路由一种新型的陶瓷负载组成，该负载提供了稳定运行所需的损耗。在34.1 GHz下测得饱和峰值功率为137 kW，对应的饱和增益为47.0分贝，效率为17%，-3分贝带宽为1.11 GHz(3.3%)。通过改变工作参数，测量了峰值输出功率在102.1~148.6 kW范围内，带宽分别为1.26和0.94千兆赫。在这些工作点上，陀螺行波管是零驱动稳定的，表明陶瓷加载是抑制陀螺行波管中杂散振荡的一种非常有效的手段。这种类型的陶瓷加载具有与高平均功率操作兼容的附加优点。
The design and experimental study of a 35-GHz gyrotron-traveling-wave tube (gyro-TWT) amplifier operating in the circular TE01 mode at the fundamental cyclotron harmonic are presented. The interaction circuit in this experiment consisted of a new type of ceramic loading that provided the required loss for stable operation. A saturated peak power of 137 kW was measured at 34.1 GHz, corresponding to a saturated gain of 47.0 dB and an efficiency of, 17%, with a -3-dB bandwidth of 1.11 GHz (3.3%). Peak output powers in the range of 102.1 to 148.6 kW with -3-dB bandwidths of 1.26 and 0.94 GHz, respectively, were measured by varying the operating parameters. The gyro-TWT was found to be zero-drive stable at these operating points, demonstrating that ceramic loading is a highly effective means of suppressing spurious oscillations in gyro-TWTs. This type of ceramic loading has the added advantage of being compatible with high average power operation.