PHASED ANTENNA ARRAY Russian patent published in 1997 - IPC

FIELD: radio engineering, in particular, wide-band antenna devices which have controlled beam pattern for radio communication by means of ionosphere waves for short-wave and ultrashort-wave bands. SUBSTANCE: device has identical flat elements each of which has pair of orthogonal coplanar dipoles which length is L and triangle arms are l (L is equal to minimal wavelength in working band). Central elements and peripheral elements which are connected to it by short-circuited conductors 2 provide orthogonal pair of dipoles for low-frequency band. All peripheral elements, including those that are contained in low- frequency dipole provide phased antenna array for high-frequency band. Excitation of antenna system is separated for horizontal and vertical dipoles. It may also be joined for round polarization of emission. EFFECT: possibility of operations of wide-band emitters which require high-quality matching with antenna. 6 dwg