5. Sidelobe Control and Monopulse Weighting

Taylor weighting is often used in ESAs to control peak sidelobe levels below that resulting from uniform weighting. Examples of Taylor weights are given, and the effect of weighting on peak gain, maximum sidelobe level, beamwidth, and ISL performance metrics is shown. Octagonally shaped ESAs, possibly resulting from turning off corner elements of a square array, are discussed as a technique to reduce peak sidelobes. Another control technique is to rotate one of the sidelobe planes relative to the other of a square array with elements turned off to form a parallelogram. Finally, weighting schemes for phase-comparison monopulse are described, including Bayliss weights and a simpler to implement scheme referred to as split-Taylor.