ANTENNA-FEEDER DEVICE MW, LW RANGES 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 transmitting non-directional antenna of the MW-LW wave range of constant readiness, if it is necessary to place it in semi-conductive soil at stationary objects. The antenna-feeder device for the MW, LW ranges of constant readiness contains the first and second tiers of symmetrical vibrators spaced apart in height, the arms of which are grouped in the form of conductors and installed parallel to each other in one geometric plane on both sides of a hopper surrounded by a metal screen, placed in a semi-conductive soil, at the same time, each arm of the symmetrical vibrators consists of two sections of symmetrical vibrators, each of which is connected through a corresponding feeder device on a tee coupling, and the two arms of each tier form an antenna sheet located above the bunker in the form of a square, formed from four sections of symmetrical vibrators equidistant from each other, the sections of the first and second tiers are arranged parallel to each other, and the symmetrical vibrators of the first tier are orthogonal to the symmetrical vibrators of the second tier, while the input of each arm of the tiers is connected to the corresponding feeder device connected to the first and second outputs of the broadband matching device connected to the output of the input-protective device, the input of which is connected to the corresponding output of the directional coupler of the protection unit of the additionally installed control device, which also includes a radio frequency unit, a monitoring and control unit, and a control and indication unit, in this case, the first input of the directional coupler is connected to the corresponding separate output of the two-channel transmitter, and the second input is connected to the separate output of the radio frequency unit corresponding to each tier, connected through separate inputs for each tier 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.

12 cl, 10 dwg