1. A radar transmission system comprising: a transmitter system configured to generate one or more radar signals; and an antenna system configured to radiate the one or more radar signals; wherein the one or more radar signals when radiated by the antenna system comprise an aperture that has: at least two neighboring elements that have a separation that is substantially unequal to the separation between at least two other neighboring elements within the aperture; a mainlobe response with a width that is near or substantially equal to the minimum possible mainlobe width; and a sidelobe response with substantially even energy distribution.