FIELD: transmitting and receiving antennas including helical ones. SUBSTANCE: proposed antenna has one or more insulated conducting circuits with windings differentially wound around and on top of multiple-connection surface such as toroidal one. Multiple-connection surface has large and small radii large one being at least equal to small one. Insulated conducting circuits are laid in usually helical conducting track around and on top of multiple- connection surface with first lead of helix directed from first to second assembly; they also pass to second, usually helical, conducting track around and on top of multiple-connection surface with second lead of helix directed from second to first assembly so that first and second, usually helical, conducting tacks are relatively differential and form single endless conducting track around and on top of multiple- connection surface. First pilot terminal is connected to first assembly and second one, to second assembly. Insulated conducting circuits may form one or more endless tracks around and on top of multiple-connection surface. Windings may be of helical or centroid-peripheral configuration, or they may be made of conductor with notches on toroid. Method for using this antenna is also given in description of invention. EFFECT: reduced space requirement of vertically polarized antenna. 34 cl, 62 dwg
