报道了用于高功率相对论返波管振荡器的永磁体的设计和试制。以Halbach阵列结构为基础,通过选择高性能的永磁材料,调整磁钢的充磁方向、排列方式和尺寸,优化设计了可用于某相对论返波管振荡器的永磁体结构,其均匀区磁场强度0.98T。采用粒子模拟方法,进行了永磁体与返波管振荡器的一体化设计,设计结果表明:器件输出功率超过1GW,设计的永磁体能够满足器件对磁场强度和位形的要求。对永磁体进行了试制和测试,测试结果为:均匀区磁场0.88T,均匀区长110mm,磁体重量约306kg。 The design and trial production of permanent magnets for high power relativistic backwave tube oscillators are reported. Based on the Halbach array structure, the permanent magnet structure of a relativistic back-wave tube oscillator is optimized by selecting high-performance permanent magnet materials, adjusting the magnetization direction, arrangement and size of the magnet, and the uniform magnetic field Intensity 0.98T. The integrated design of the permanent magnet and the backwave tube oscillator was carried out by the particle simulation method. The design results show that the output power of the device exceeds 1GW, and the designed permanent magnet can meet the requirements of the device to the magnetic field strength and shape. The permanent magnet was tested and tested, the test results are as follows: a uniform magnetic field of 0.88T, a uniform length of 110mm, a magnet weight of about 306kg.