Narrowband Optimization of Hybrid RDRA and Microstrip Patch Antennas Design to improve the gain at 28GHz
DOI:
https://doi.org/10.22399/ijcesen.2553Keywords:
Hybrid design, H (Electromagnetic) modelling, Microstrip patch antenna, Slots, RDRA antenna, FeedAbstract
Numerous applications necessitate the utilization of antennas. One type of antenna commonly employed in the field of communication is known as the dielectric resonator antenna (DRA). This research aims to improve the gain and efficiency of antenna by hybrid ( multiple design) which means collecting rectangular dielectric resonator RDRA antenna with microstrip patch antenna together as ( hybrid design ) in one design and stacked them. Then change the geometry and thickness of antenna as well as changing the materials of microstrip patch antenna and RDRA antenna. This occurs by creating different shapes of slots placed on different positions on patch of the microstrip antenna and design DRA antenna with same dimensions to enhance gain and efficiency. The efficiency of the DRA antenna increases in this new design, too. However, the bandwidth reduced in the hybrid design to enhance gain and to be suitable for this special design. This hybrid design (RDRA ,Microstrip patch ) antennas together can provide ease of integration with circuits and surface wave excitation, while the dielectric resonator enhances radiation efficiency and supports different modes for better performance. Other hybrid antenna designs might combine dielectric resonators with slot antennas, monopoles, or horn antennas to achieve specific performance improvements suited for applications like satellite communication, wireless networks, and radar systems.
The comparison based on key performance metrics, including S-parameters, gain, directivity, bandwidth, and voltage standing wave ratio (VSWR). The software CST (Computer Simulation Technology) is employed for testing and to assess the characteristics of the designed microstrip and DRA antennas.
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