Time delay unit quantization at the subarray level for large, wideband linear arrays

Time delay units become larger and more expensive as the number of bits and physical size of the bits increases. The goal is to reduce the number of large bits in the array by placing them back in the feed network where they are shared my many elements. As the bits are moved back in the feed network, time delay quantization increases and produces errors in the array factor. This paper presents trade-offs between reducing the number of time delay bits and maintaining a desirable array pattern.