Magnetron automatic phase modulation device, system and method based on injection frequency locking

Abstract

The invention relates to a magnetron automatic phase modulation device, system and method based on injection frequency locking. The magnetron automatic phase modulation device comprises a signal source, a magnetron, a circulator and a controller. The signal source is used for transmitting an injection signal, and the injection signal is used for adjusting the frequency of a signal output by the magnetron; the magnetron is used for receiving the injection signal subjected to phase adjustment and adjusting the frequency of the signal output by the magnetron according to the frequency of the injection signal; the controller is used for comparing the change of the phase difference between the injection signal emitted by the signal source and the magnetron output signal, obtaining an adjustment variable through a neural network algorithm, and adjusting the phase of the injection signal based on the adjustment variable. The invention aims to realize rapid and accurate regulation and control and efficient and stable power synthesis of the output phase of a high-power magnetron by constructing a phase real-time feedback control system based on an artificial intelligence algorithm, and meet the requirements of microwave wireless energy transmission and other applications on a high-power and high-efficiency magnetron microwave source.

Description

technical field [0001] The invention belongs to the field of microwave technology, and in particular relates to a magnetron automatic phase adjustment device, system and method based on injection frequency locking. Background technique [0002] Microwave wireless energy transmission system can be divided into three parts according to function: transmission, transmission and reception, and mainly pursues two major indicators of high power and high efficiency. One of the key technologies to realize high-power microwave wireless energy transmission is a high-power, high-efficiency microwave source. Magnetron is still the best choice of microwave source in microwave wireless energy transmission due to its advantages of low cost, high efficiency, and high power-to-mass ratio. Compared with solid-state circuit microwave sources, magnetron microwave sources are low in cost, and their output power and efficiency are much higher than those of solid-state sources. Compared with othe...

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Problems solved by technology

[0004] However, in the power combining system of multi-channel magnetron microwave sources, the phase difference between the multi-channel magnetrons will be greater than the phase stability of the magnetron itself. As time continues to accumulate, it seriously affects the efficiency of power synthesis

Therefore, the precise and fast phase control of high-power microwave sources has become particularly important, but there is still no good solution in the world

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