Parasitic Beam Steering Antenna loaded with Shorting Vias

• Published in: 2023 IEEE International Symposium on Antennas and Propagation, ISAP 2023
• Main Author: Akhbar R.; Ja’afar H.; Rahman N.H.A.; Ramli N.; Abdullah R.; Sadeghikia F.
• Format: Conference paper
• Language: English
• Published: Institute of Electrical and Electronics Engineers Inc. 2023
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184825397&doi=10.1109%2fISAP57493.2023.10388728&partnerID=40&md5=cb2603f6637b8157dd42857ab1017f81
• DOI: 10.1109/ISAP57493.2023.10388728

This paper presents a beam steering patch antenna with two parasitic elements loaded with shorting vias. The proposed antenna consists of a circular driven patch and two circular parasitic elements placed adjacent to the driven patch (upper left and below right). The mutual coupling effect between both driven and parasitic has managed to steer the beam. The parasitic elements electrically shorten the ground plane through shorting vias. ON state condition indicates the activation of the parasitic elements which required a shorting vias connected to the ground plane and vice versa. Based on the ON/OFF state of the shorting vias loaded parasitic elements, the proposed antenna able to steer the main beam to different directions to -7°, 0°, 5° and 12° at the resonant frequency of 3.5 GHz with maximum gain of 7.73 dBi. © 2023 IEEE.