| 摘要 |
FIELD: radio engineering. ^ SUBSTANCE: transmitting device of helicopter radar station includes travelling-wave tube (TWT), high-voltage rectifier, voltage divider, collector power source, anode power source, modulator, as well as filament voltage power source, transformer, rectifier, the first switching device, the second switching device, input path, output path, waveguide of input microwave signal W1, waveguide of output microwave signal W2, waveguide connection W3, waveguide connection W4, plug pin of input pulse of transmitter start-up, plug pin for transfer of input alternating supply voltage of phase A, plug pin for supply of input alternating supply voltage of phase B, plug pin for supply of input alternating supply voltage of phase C, and plug pin for supply of input direct supply voltage. At that, modulator consists of the first stabiliser, control diagram, the second stabiliser and switching device. ^ EFFECT: improving operating reliability of transmitting device of helicopter radar station in millimetre wave range so that inconsiderable mass and dimension characteristics can be provided. ^ 1 dwg |
