TUNABLE ANTENNA OF LF, MR, HF BANDS Russian patent published in 2021 - IPC H01Q1/36 

FIELD: radio engineering.

SUBSTANCE: tunable antenna of the low frequency, midrange, and high frequency ranges belongs to the field of radio engineering and can be used as an antenna raised by an aircraft to work in the ranges of radio wave lengths of low frequencies, medium frequencies and high frequencies. Most effectively, this antenna can be used in radio transmitting non-stationary radio centers with their variable dislocation on the ground (mobile for the operational organization of radio transmitting centers and relocated radio transmitters associated with the radiation of electromagnetic waves, scientific laboratories). Essence: in the invention, the supporting aircraft is a multicopter, the self-supporting cable is made of a flexible conductive antenna rope and passed through a conductive snatcher fixed to the insulating device of the multicopter, and the extension of the passed self-supporting cable is omitted, with the formation of an antenna web in the form of an isosceles triangle by the conductive antenna rope, and passed further through a conductive snatcher having a point of contact with the counterweight conductor, from which the self-supporting cable is fed to the winch drum with the possibility of adjusting and fixing the released length of the self-supporting cable, while the contact points of the counterweight with the conductive snatcher and the first antenna electrode are spaced in the form of a triangle base.

EFFECT: increasing efficiency of the antenna device with an extended adjustable operating frequency band during operational adjustment with precise adjustment, installed on the basis of the structure of a wind-resistant lifting device, as well as improving the electrical characteristics of antennas when used in the low-frequency, midrange, and high-frequency bands due to non-standard reconstruction of the Pistolkors loop.

6 cl, 4 dwg