Abstract
The design and development of linear dual-band patch arrays with wide-angle scanning feature and large frequency ratio is presented. The novel dual-band patch antenna used in the linear arrays supports two well-defined bands with a frequency ratio of 1.43∶1, in the X-band, and maintains consistent radiation patterns at both the sub-bands. The antenna also has a compact electrical dimensions measuring only 0.38λL × 0.38λL, at the low frequency band of operation. Prototypes linear arrays have been built and their performance experimentally validated.
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