DUAL BAND IRRADIATOR Russian patent published in 2010 - IPC H01Q5/00 

FIELD: physics; radio.

SUBSTANCE: invention relates to antenna engineering. The dual band irradiator has two folded dipoles, one for the low wavelength band and the other, whose curtains are placed in parallel planes, for the high band. The high wavelength band dipole is orthogonally mounted on the low wavelength band dipole such that longitudinal axes of the dipoles are perpendicular to each other in the projection on a reflector. The phase centre of the low band folded dipole lies between its curtain and the plane of the reflector, and the phase centre of the high band dipole lies between its curtain and the low band folded dipole.

EFFECT: attaining high directivity index, high degree of matching, simplification and technological effectiveness of making the structure, as well as its compactness.

6 cl, 7 dwg