Ji-Hong Kim, Chang-Hyun Jeong, and Wang-Sang Lee. 2019. “Rotated Stacked Yagi Antenna With Circular Polarization for IoT Applications”. The Applied Computational Electromagnetics Society Journal (ACES) 34 (08):1246-49. https://journals.riverpublishers.com/index.php/ACES/article/view/8307.