SLOT ANTENNA Russian patent published in 2018 - IPC H01Q9/04 

FIELD: antenna equipment.

SUBSTANCE: invention relates to an antenna equipment, in particular to the cavity-type slot antennas with a semi-directional radiation pattern, and can be used in communications technology, especially aboard of a space object. Slot antenna comprising a cylindrical electrically conductive body, an amplitude-phase divider including coaxial cables, cross-shaped slot four electrically conducting exciters, and an elliptically polarized electromagnetic wave cross-shaped slot emitter placed at the cylindrical electrically conductive body first end, differs in that the amplitude-phase divider two channels are formed by a microstrip board, and two more channels are formed by coaxial cables connected to electrically conductive exciters of the cross-shaped slot, disk from electrically conductive material is also inserted into the cylindrical electrically conductive body, fixed to the cylindrical electrically conductive body second end by means of a rod from electrically conductive material, wherein the disk from the electrically conductive material axis coincides with the axis of the antenna electrically conductive cylindrical body, and on the cylindrical electrically conductive body first end cross-shaped slot four electrically conductive exciters are fixed, which are installed in the tops of the square with the center on the disk from the electrically conductive material axis, and the amplitude-phase divider is located outside the cylindrical electrically conductive body.

EFFECT: reduction of antenna dimensions and its two-frequency matching with the feeder path of 50 Ω by introducing a disk from the electrically conductive material into the antenna cylindrical conductive body.

1 cl, 3 dwg