Implementation of Cylindrical Dielectric Resonator Antenna Array for Wi-Fi/Wireless Lan/Satellite Applications

Abstract

A tri-band Cylindrical Dielectric Resonator Antenna (CDRA) array is proposed for WiFi, wireless LAN, and satellite applications in this paper. CDRA is massively demanded by various smart wireless devices. The claimed antenna array structure is developed and fabricated using an FR4 substrate having relative permittivity (ε r) of 4.4. Microstrip power divider line is utilised for array excitation. The variation in return loss due to the effect of varying microstrip line length, dielectric resonator height, and ground plane height has been carefully recorded and presented using parametric study. The array structure is engineered for triple-band operations working at 2.4 GHz, 4.1 GHz, and 5.4 GHz frequencies. To achieve adequate bandwidth accompanied by acceptable gain is a very inspiring task. The proposed structure shows a promising maximum impedance bandwidth of 1.14 GHz (40%) and a maximum gain of 9 dBi. The return loss and radiation pattern computed through CST software are verified by practical measurements using VNA device and anechoic chamber atmosphere.

Design and Impedance Modeling of a Compact Sequentially Rotated Quasi-Lumped Antenna Array for Wi-Fi Applications

“…Single-element antennas are normally low-gain devices that need to be arrayed to achieve high gain performance. Several types of feed have been used in linear arrays to meet this requirement, including series [5] and parallel microstrip feeds [6]. In general, a series feed topology results in a more concise network that involves shorter transmission lengths, fewer junctions, and lower insertion losses compared to a parallel feed; however, it is subject to a narrow bandwidth and phase differences due to the differences in line lengths [7].…”

Design of Metamaterial Based Multilayer Antenna for Navigation/Wifi/Satellite Applications

“…To obtain an adequate gain with size constraints is a challenging task. Many researchers have worked on obtaining the acceptable gain with microwave component size restriction [28][29][30][31][32][33][34].…”

Tri-Band Defected Ground Plane Based Planar Monopole Antenna for Wi-Fi/Wimax/Wlan Applications

“…Receiving the adequate gain along with size miniaturization is a difficult task. A lot of research has been done to achieve the adequate gain for a compact structure [30][31][32][33][34][35][36][37]. This field radiation is shown for 2.47 GHz, 3.55 GHz, and 5.55 GHz frequencies, respectively.…”