折叠型平板Blumlein线高功率微波驱动源

High power microwave driver using folded plate Blumlein line

介绍了一种使用折叠型平板Blumlein线为主体的紧凑型高功率微波驱动源,Kapton薄膜和纯净变压器油分别作为折叠型平板Blumlein线的传输线介质和绝缘介质,Blumlein线的整体尺寸为1.00 m×0.40 m×0.15 m。采用一个特征阻抗大约是12Ω的C波段磁绝缘振荡器作为高功率微波源。折叠型平板Blumlein线传输的能量可以使磁绝缘振荡器的阴极发射出电压550 kV,电流40 kA,脉宽90 ns的电子束,从而产生峰值功率350 MW,脉宽40 ns的高功率微波。

A compact high power microwave（HPM） driver using a folded plate Blumlein line is introduced. The folded plate Blumlein line uses Kapton film as the transmission dielectric and pure transformer oil as the insulation medium. The whole size of this Blumlein line is 1.00 m×0.40 m× 0. 15 m. The HPM source used a C-band magnetically insulated oscillator（MILO） with characteristic resistance of about 12 Ω. The folded plate Blumlein line delivers energy to the cathode of the MILO to produce an intense electron beam of 550 kV, 40 kA and 90 ns, and a high power microwave with peak power of 350 MW and pulse width of 45 ns radiates from the C-band MILO.