Ultra wideband antenna array on the basis of 8x8 shaped slot radiators





ultrawideband antenna, Vivaldi antenna


Numerical analysis results of electromagnetic connection between radiating elements in scanning ultra wideband (2…12 GHz) antenna array that consists of 9×9 Vivaldi antennas are presented. Using these results and the suggested efficient synthesis methodology a sample ultra wideband antennas array that consists of 8×8 identical shaped slot radiators was developed, manufactured and experimentally studied. Measurements results of VSWR and radiation pattern of the sample array demonstrated that it array provides scanning within ±30° in E-plane with VSWR < 2 and retention of radiation pattern in the frequency range 5…10 GHz for the spacing between neighbor radiators equal to 15 mm (λ/2 at 10 GHz).


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