A Low-Profile Hybrid Multi-Permittivity Dielectric Resonator Antenna With Perforated Structure for Ku and K Band Applications. - Ihsan Ahmad Zubir; Mohamad Ariff Othman; Ubaid Ullah; Shahanawaz Kamal; Mohd Fariz Ab Rahman; Roslina Hussin; Mohamad Faiz Bin Mohamed Omar; Abdullahi S. B. Mohammed; Mohd Fadzil Ain; Zainal Arifin Ahmad; Mohd Zaid Abdullah (IEEE Access, 2020)