Malhat, H. A. E., Zainud-Deen, S. H., Hassan, W. M., & Awadalla, K. H. (2015). Radiation Characteristics Enhancement of Dielectric Resonator Antenna Using Solid/Discrete Dielectric Lenses. Advanced Electromagnetics, 4(1), 1–9. https://doi.org/10.7716/aem.v4i1.275