e-Prime: Advances in Electrical Engineering, Electronics and Energy (Jan 2022)
A miniaturized cylindrical dielectric resonator antenna array development for GPS / Wi-Fi / wireless LAN applications
Abstract
A triple band Compact Cylindrical Dielectric Resonator Antenna (CCDRA) array is designed, analyzed, fabricated and presented in this paper. A high dielectric material is utilized in the proposed structure to achieve adequate compactness with moderate gain. The overall size of a proposed antenna array is 50 × 60 × 1.6 mm3. The array utilizes Flame Retardant (FR4) material as a substrate which is commercially available. The unequal microstrip line power divider excitation technique is introduced to obtain satisfactory bandwidth. The presented antenna operates at 1.5 GHz, 2.4 GHz and 5.8 GHz frequencies with the gain values of 2.8 dBi, 3.4 dBi and 5.8 dBi. The Defected Ground Structure (DGS) boosts the antenna efficiency above 75%. The VSWR of presented prototype is well below the need of 1.5.The adequate response from an antenna at targeted frequencies makes it suitable for GPS / Wi-Fi /WLAN applications.
