DIFFERENTIAL BACKLOBE ANTENNA ARRAY

摘要

DIFFERENTIAL BACKLOBE ANTENNA ARRAY This specification discloses an antenna system with a left antenna array having a pair of radiators and a right antenna array having a pair of radiators. The spacing of the radiators is such that one antenna array produces a positive phase backlobe and the other antenna produces a negative phase backlobe. Appropriate processing of the signals from the two antenna arrays permits exclusion of any signal received in the backlobe of the two arrays. The spacing between the radiators in one array is determined by the equation .lambda.(.25 + x) and the spacing between radiators in the other array is determined by the equation .lambda.(.25 - x) wherein .lambda. is the wavelength of an electrical signal applied to the antenna system and x is the radiator spacing differential in wavelengths.