It would be interesting to see the same antenna produced from a more consistent dielectric material than generic FR4. Meanwhile, if you are interested in microwave RF design, take a look at ...
Scientists from IISc and RRI have developed a novel 'fantail' antenna design capable of detecting faint signals in cosmic microwave background radiation (CMB) with unprecedented precision.
two employees of Bell Labs had had their eye on the antenna. Arno Penzias (b. 1933), a German-born radio astronomer, joined Bell Labs in 1958. He had done his PhD on using masers (microwave ...