ANTENNA-FEEDER DEVICE FOR ULW, LW, AW WAVE BANDS Russian patent published in 2023 - IPC H01Q1/04 H01Q21/24 

FIELD: radio engineering.

SUBSTANCE: invention relates to the field of radio engineering, namely to antenna technology, and, in particular, the claimed antenna-feeder device (AFD) can be used as a receiving non-directional antenna of the ULW, LW, AW wave bands of constant readiness if it is necessary to place it in a semi-conductive soil. The substance of the claimed solution lies in the fact that the antenna-feeder device of the ULW, LW, AW wave bands of constant readiness contains an even number of symmetrical vibrators located in the thickness of the earth's hills and connected to a coaxial feeder, while the symmetrical vibrators are grouped into an antenna sheet, consisting of two diagram-forming orthogonally arranged sections, each of which consists of two parallel vibrators - long and short, and the length of the short vibrator is ¼ part less than the long one, united by a tee coupling communicated through the corresponding feeder device with an input-protective device, the input of which is connected to the corresponding output of the directional coupler of the protection unit of an additionally installed control device, which also includes a radio frequency unit, a monitoring and control unit and a control and indication unit, while the first input of the directional coupler is connected to the corresponding separate output b an antenna matching block connected to the output of a two-channel radio receiver, and the second input - to a separate output of the radio frequency unit corresponding to each section, connected through separate inputs for each section to the monitoring and control unit, the input of which is communicated with the output of the control and indication unit.

EFFECT: increasing the uniformity of the radiation pattern and increasing the gain, as well as providing the possibility of diagnosing the state of the device.

5 cl, 5 dwg