Patent ID: 6759992
Filing Date: 2004-07-06
Classification: H01Q

Abstract:
An antenna for use in a sectorized cellular communication system, said antenna comprisinga wide-flare pyramidal horn having two pairs of opposed flared walls, at least one of said two pairs of opposed walls having corrupted interior surfaces, the length of said horn and the flare angle of said walls having said corrugated interior surfaces being dimensioned to produce a ratio &Dgr;e/&lgr; greater than 1.5, where &Dgr;e=[a/2/&lgr;] tan (&agr;e/2) is the spherical-wave error of said horn, &lgr; is the free space wavelength of the microwave signals to be transmitted by said antenna, a is the aperture width and &agr;e is the horizontal half-angle of the horn.