LINEARLY OR ELLIPTICALLY POLARIZED STRIPLINE ANTENNA Russian patent published in 1997 - IPC

FIELD: communication lines, linear telemechanics systems, antenna elements on spacesuits. SUBSTANCE: antenna has two pairs of coaxial dipoles excited by radial sections of stripline connected in center of board to coaxial or strip transmission line, sides being arranged on either side of printed-circuit board. Sides of adjacent dipoles located on one side of board point to one direction and those of two other dipoles, to other direction. Currents flowing through coaxial pairs of dipoles are cophasal and form linearly polarized directivity pattern with radiation maximum along symmetry axis of antenna. Dipole sides are mounted on circular or rectangular printed-circuit board. Quarter-wave phase-shifting stubs are inserted in series with radial sections of strip line feeding one of pairs of orthogonal coaxial dipoles for shaping elliptically polarized directivity pattern. EFFECT: enlarged functional capabilities. 3 cl, 2 dwg