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首先讨论了闭环锁式铁氧体移相器提高差相移温度稳定性的原理。分析了反馈方式 (单导线电压反馈和双导线磁通反馈 )的不同对闭环锁式铁氧体移相器温度稳定性的影响 ,研制了双导线磁通闭环锁式高功率(40kW)铁氧体移相器 ,采用槽波导技术解决了高功率条件下移相器的打火问题 ,在 - 40℃～ +6 0℃下移相器差相移的均方根误差σ≤ 8°。该移相器已通过了某相控阵雷达的各项实验。
First, the principle of closed-loop ferrite phase shifter to improve the temperature stability of differential phase shift is discussed. The influence of different feedback modes (single-wire voltage feedback and double-wire flux feedback) on the temperature stability of the closed-loop ferrite phase shifter was analyzed. A two-wire flux closed loop lock high power (40kW) ferrite The bulk phase shifter uses slot waveguide technology to solve the problem of sparking of phase shifters under high power conditions. The root mean square error of the phase shift of the phase shifters is less than or equal to 8 ° at -40 ℃ to + 60 ℃. The phase shifter has passed a phased array radar experiments.