Haruo Kawakami, Masao Tanioka, and Ryoji Wakabayashi. “Circularly Polarized Log Periodic Dipole Antennas”. The Applied Computational Electromagnetics Society Journal (ACES) 35, no. 11 (November 7, 2020): 1312–1313. Accessed April 27, 2024. https://journals.riverpublishers.com/index.php/ACES/article/view/7509.