RESUMO

Magnetron is a microwave generator widely applied in radar engineering. In a radar, shorter operating wavelength means a better resolution and/or downsizing of its antenna. However, in the short-wave part of millimeter wave range, one has to deal with a growing relative manufacturing error of magnetron's resonator system. The processing faults distort the structure of the HF-field of the doublet component. As a result, the percentage of faulty magnetrons due to an unsatisfactory efficiency increases. The approach suggested in this paper allows to estimate, on a basis of indirect data, the "distortion" of the spatial harmonics spectrum of the HF-field of magnetron's slowing system, enabling one to proactively detect symptoms of possible defects in magnetron's oscillating system, which may cause a latent spoilage affecting the efficiency. The suggested checkout method can be implemented by means of standard gages, traditionally used in magnetron manufacturing for testing the resonator system parameters at a low power level, which allows to easily integrate this procedure into a standard process. All data necessary for commissioning the described procedure will be derived in a series of experiments. The goal is to decrease the portion of faulty devices in the magnetron production.