Development of a Miniaturized <inline-formula> <tex-math notation="LaTeX">$W$ </tex-math> </inline-formula>-Band Spatial Harmonic Magnetron

作者：Shengen Li, Fengling Li, Jinsheng Yang, Tiechang Yan, Bo Du, Wei Shi · 发表于：IEEE Transactions on Electron Devices · 年份：2016 · DOI：10.1109/ted.2016.2569002 · 被引用次数：12 · 研究领域：Gyrotron and Vacuum Electronics Research、Microwave Engineering and Waveguides、Acoustic Wave Resonator Technologies

Spatial harmonic magnetrons (SHMs) are effective microwave oscillation sources in short millimeter and terahertz regions. This paper presents the development of a miniaturized W-band SHM, which features small size, lightweight, high power, and high reliability. In the design of this SHM, the first backward spatial harmonic wave of π/2 -1 mode was used for beam-wave interaction. Then particle-in-cell code was employed to analyze its characteristics, including dispersion, mode separation, field distribution, and electron spokes. Based on the simulation results, a prototype of the miniaturized W-band SHM was fabricated. The test data showed the device was able to deliver an output power of ~2.0 kW. Note that this magnetron has a dimension of only 36 mm x 36 mm x 80 mm and a weight of less than 270 g with magnets.