ROTARY CONNECTION Russian patent published in 2018 - IPC H01P1/06 

FIELD: radar ranging and radio navigation.

SUBSTANCE: invention relates to the field of radar technology, in particular to antenna-feeder system devices used for transmitting microwave energy between a fixed part of a radar (radar), e.g. stationary (fixed) transmitters, receivers, and a rotating antenna system. This technical result is achieved by the fact that in a rotating joint containing matching transitions, connected with segments of concentrically arranged connected axial lines, made in the form of rotating and stationary cylinders, whose length is equal to a quarter of the average wavelength of one of the operating ranges, while the length of the overlapping cylinder sections formed by the rotating and fixed cylinders is not a multiple of a quarter of the wavelength of any of the frequencies of these ranges.

EFFECT: technical result of the invention consists in increasing the number of working frequency bands of the channel while maintaining good matching and small losses of the microwave signal.

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