Karaçuha, K., F. T. Çelik, and H. I. Helvaci. “A Multi-Mode Pattern Diverse Microstrip Patch Antenna Having a Constant Gain in the Elevation Plane”. Advanced Electromagnetics, vol. 12, no. 4, Nov. 2023, pp. 1-9, doi:10.7716/aem.v12i4.2079.