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Pattern Reconfigurable Dielectric Resonator Antenna Using Parasitic Feed Elements for LTE Femtocell Base Stations

Aymen Dheyaa Khaleel, Mohd Fais Mansor, Norbahiah Misran, and Mohammad Tariqul Islam
Centre of Advanced Electronic and Communication Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Selangor, Malaysia

Abstract—An initial cuboid shape dielectric resonator antenna is made from a ceramic compound with a high dielectric constant of 30. A feeding mechanism that consists of a coaxial probe in the middle of the antenna is installed underneath, Parasitic feed elements are used to guide the flow of the surface current into the desired direction. Each parasitic feed possesses a switch to control the surface current flow and obtain a reconfigurable pattern. The impedance bandwidth of the proposed antenna is 320 MHz from 2.45–2.72 GHz with a total efficiency exceeding 96%, which is suitable for long-term evolution (LTE) of bands 7 (2,500–2,570 MHz, 2,620–2,690 MHz) and 38 (2.57–2.62 GHz) femtocell base stations. The proposed antenna is fabricated, and results indicate satisfactory agreement between simulated and fabricated antennas. 

Index Terms—pattern reconfigurable, dielectric resonator antenna, LTE, Femtocell base stations



Cite: Aymen Dheyaa Khaleel, Mohd Fais Mansor, Norbahiah Misran, and Mohammad Tariqul Islam " Pattern Reconfigurable Dielectric Resonator Antenna Using Parasitic Feed Elements for LTE Femtocell Base Stations," Journal of Communications, vol. 13, no. 5, pp. 242-246, 2018. Doi: 10.12720/jcm.13.5.242-246.