ANTENNA WITH INTERCONNECTED FERROMAGNETIC RODS WITH COILS Russian patent published in 2021 - IPC H01Q7/08 H04B1/04 H04B1/08 

FIELD: radio electronics.

SUBSTANCE: object of the invention is a ferrite antenna comprising at least one main circuit comprising at least one first coil which is called the main coil (1), at least one first ferromagnetic rod which is called the main ferromagnetic rod (4), and a tuning system (3), wherein each main coil (1) is wound around the main ferromagnetic rod (4) and connected to the tuning system (3) comprising a capacitor connected parallel to the main coil (1). The ferrite antenna is characterized by additionally containing a secondary non-resonant circuit comprising a secondary coil (2) electrically separated from each main coil (1) and a secondary ferromagnetic rod (5) wherein the secondary coil (2) is wound around said rod, and by each main ferromagnetic rod (4) and secondary ferromagnetic rod (5) being located parallel to each other in order to provide magnetic connection of each main coil (1) with the secondary coil (2).

EFFECT: technical result of implementation of the proposed group of solutions is creation of a ferrite antenna which is simple and efficiently adaptable to real impedance, particularly 50 Ohm, wherein the ferrite antenna has maximum efficiency and good frequency flexibility which allows expanding the general tuning bandwidth of the antenna.

10 cl, 13 dwg