Printed Antenna Array with Flat-Top Radiation Pattern

What is it about?

A printed antenna array consisting of 10 wideband symmetrical pentagonal dipoles is presented. The measured results demonstrate excellent radiation characteristics including 38° flat gain region with maximum ripple of 3.5dB at the centre frequency. Furthermore, the proposed antenna that is placed in corner reflector with angle of 60° has good gain (17dBi) and side lobe suppression (18.9dB).

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Why is it important?

Although proposed antenna array is designed at the centre frequency 12GHz, it was shown to be capable of shaping a good flat top radiation pattern within a fractional bandwidth at least 6% of centre frequency. Also, proposed antenna features cheap, simple and easy fabrication that makes it suitable for mass production.