Two different designs for planar LPDAs were designed and measured. Both designs showed low return loss and high F/B ratio, accompanied by an acceptable value of gain. A comparison between them showed that the meander design has similar properties to the Euclidean design, while it occupies less space in the antenna system and thus less weight.
Gheethan, A. A., & Anagnostou, D. E. (2008). Reduced size planar log-periodic dipole arrays (LPDAs) using rectangular meander line elements. In 2008 IEEE Antennas and Propagation Society International Symposium IEEE. https://doi.org/10.1109/APS.2008.4619145