Parameter variation with array size for broadband arrays of irregular polyomino subarrays

This paper has investigated the array parameters for arrays of irregular polyomino subarrays used to introduce time delay for large planar phased arrays, and compared these parameters with those of arrays using rectangular subarrays. It is shown that the gain reduction is only about 0.1 dB compared to rectangular subarrays and about 0.4 dB compared to an array with time delays at each element. Finally, it is shown that the array of irregular subarrays has no evident quantization lobes (quantization lobes do not decrease with array size), but has a number of low residual sidelobes that are shown to continually decrease with array size.