The design of a planar dual-band wide-scan phased array is presented. The array uses novel dual-band comb-slotloaded patch elements supporting two separate bands with a frequency ratio of 1.4:1. The antenna maintains consistent radiation patterns and incorporates a feeding configuration providing good bandwidths in both bands. The design has been experimentally validated with an X-band planar 9×9 array. The array supports wide-angle scanning up to a maximum of 60º and 50º at the low and high frequency bands respectively.

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