On the design of traveling-wave-fed longitudinal shunt slot arrays

An existing design procedure, applicable to standing-wave-fed longitudinal shunt slot arrays, and which accounts for the variability of mutual coupling, has been extended to situations in which a traveling wave feed is employed, i.e., the slots are not
\lambda_{g}/2
on centers. The extension permits the design of slot arrays to give an input match and a sum pattern for which the main beam is not at broadside. The technique is also amenable to difference pattern applications.