Improved Vivaldi Antenna with Radiation Pattern Control Features

• Published in: Telkomnika Vol. 16; no. 3; pp. 1143 - 1149
• Main Authors: Abijuru, Delphine, Hamid, M.R., Obadiah, Ali N.
• Format: Journal Article
• Language: English
• Published: Yogyakarta Ahmad Dahlan University 01.06.2018
• Subjects: Antenna radiation patterns; Antennas; Computer engineering; Design; Propagation; Unmanned aerial vehicles
• ISSN: 1693-6930; 2302-9293
• DOI: 10.12928/telkomnika.v16i3.9039

In a multipath fading environment, it has been suggested to hold an antenna that can indicate the primary shaft to the desired coverage area while slimming down the unwanted beam in other charges, therefore mitigating the multipath propagation, consequently improve the channel capacity [6-7], several reconfigurable antennas have been investigated to suit different applications employing different feeding techniques such as microstrip line feeding [8-9], CPW to slot-line feeding [10], Antipodal feed [11]. Other technologies such as C2X (Car to Car) communication and Unmanned Aerial vehicles (UAVs) that are used for enhancing road safety and traffic efficiency do require such pattern reconfigurability to suit the demands of mitigating the problems of interferences between users and electronic jamming by channeling the main beam toward the direction of the incoming signals [14-15]. Though substantial progress has been achieved in this field, many applications do not require the level of complexity, which translate into higher power consumption. [...]there is still a need for a controlled radiation pattern antenna which is physically smaller and less complex, with high directivity and strong resistance to electronic- warfaresystems (EW) so as to ensure that the radiation emitted is concentrated in a single direction. The simulated results of the proposed antenna proved that changing the radiating element would ensure a better way to enable wireless communication systems to avoid noisy environment by maneuvering away from electronic jamming, consequently, optimizing the radiation energy by redirecting the signals towards only the user thus increase the channel capacity and broaden the coverage area of the wireless system.