The utilization of backgrounds as radiating elements to construct multibeam radial line slot array (RLSA) antennas

Purnamirza, Teddy and Nawawi, Ahmad and Mohd Ibrahim, Imran and Rahmi, Depriwana (2021) The utilization of backgrounds as radiating elements to construct multibeam radial line slot array (RLSA) antennas. International Journal on Communications Antenna and Propagation, 11 (2). pp. 118-126. ISSN 2039-5086

Text 2021 THE UTILIZATION OF BACKGROUNDS AS RADIATING ELEMENTS TO CONSTRUCT MULTIBEAM RADIAL LINE SLOT ARRAY (RLSA) ANTENNAS.PDF Restricted to Registered users only Download (1MB)

Abstract

RLSA antennas normally have a single beam produced by slots installed on their radiating element. A technique was, therefore, introduced in this study to optimally design multibeam RLSA antennas. This involved the utilization of the antennas’ background to radiate signals by installing slots on it just like the radiating element to ensure the creation of multibeam after which the effects of this method such as signal flow disturbances and gain reduction were discussed. Moreover, 105 multibeam RLSA models were designed and simulated to verify the technique developed after which a prototype of the best model was fabricated and measured to verify the simulation. The result showed it is possible to obtain multibeam antennas with similar symmetry in terms of beamwidth and directions. Furthermore, the gain recorded for beams 1, 2, 3, and 4 was 8.28 dBi, 6.28 dBi, 6.38 dBi, and 8.18 dBi respectively, and were averagely about 6 dB lower than the value for single beam RLSA antennas, therefore, they suit the theory of beam splitting. The antennas were also found to have more than enough bandwidth and good reflection coefficient and the technique’s validity was verified by a strong agreement between the simulation and measurement results.

Item Type:	Article
Uncontrolled Keywords:	RLSA antennas, Multibeam antennas, Antennas’ background, Radiating element
Divisions:	Faculty of Electronics and Computer Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	29 Mar 2023 10:44
Last Modified:	29 Mar 2023 10:44
URI:	http://eprints.utem.edu.my/id/eprint/26512
Statistic Details:	View Download Statistic

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