Title :
Studies on Efficient Operation of an X-Band Oversized Slow-Wave HPM Generator in Low Magnetic Field
Author :
Zhang, Jun ; Zhong, Hui-Huang ; Jin, Zhenxing ; Shu, Ting ; Cao, Shengguang ; Zhou, Shengyue
Author_Institution :
Coll. of Optoelectric Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
The efficient operation of high-power microwave (HPM) sources using slow-wave structures (SWSs) in low magnetic field has been an attractive aim pursued by HPM researchers. This paper presents the latest experimental results of an X-band oversized SWS HPM source operating at low guiding magnetic field with both power and efficiency enhancements. Driven by an electron accelerator with diode voltages of 450-900 kV, the generator operated with the output microwave power ranging from 0.5 to 3 GW and the efficiency being kept at about 25%. The optimized magnetic field was in the 0.5-0.75 T range, depending on diode voltages. Without the employment of superconductive-solenoid system, a very stable 100-Hz repetitive operation with 1.5-GW output microwave power was realized in the 1-s-burst mode.
Keywords :
electron accelerators; magnetic fields; microwave devices; slow wave structures; X-band oversized slow-wave HPM generator; electron accelerator; high-power microwave sources; low magnetic field; slow-wave structures; High-power microwave (HPM) source; X-band; low magnetic field; oversized slow-wave structure (SWS); repetitive operation;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2009.2022758
