Design of a Compact Tapered Slot Vivaldi Antenna Array for See Through Concrete Wall UWB Applications
نویسندگان
چکیده
An optimized 1×8 Vivaldi antenna array designed for the lower-band UWB (2-4 GHz) through-wall imaging systems has been developed. Tapered slot antennas were utilized as the array elements and optimized to have a compact size. A one to eight wideband Wilkinson power divider was designed and fabricated to compose the feed network for Vivaldi antenna array. Measured results of the manufactured Vivaldi antenna array are in excellent agreement with the simulated ones, with a gain of more than 12 dBi within the operating band. The developed array is an essential component for see through concrete wall applications, and very similar in size and gain to the previously developed Vivaldi antenna (around 10 GHz) by our group for drywall-high resolution detection.
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