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60 GHz beam-tilting coplanar slotted SIW antenna array

  • Hamsakutty Vettikalladi EMAIL logo , Waleed Tariq Sethi , Mohammed Himdi and Majeed Alkanhal
Published/Copyright: July 13, 2021
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Abstract

This article presents a 60 GHz coplanar fed slotted antenna based on substrate integrated waveguide (SIW) technology for beam-tilting applications. The longitudinal passive slots are fed via associated SIW holes adjacent to the coplanar feed while the main excitation is provided from the microstrip-to-SIW transition. The antenna array achieves an impedance bandwidth of 57–64 GHz with gains reaching to 12 dBi. The passive SIW slots are excited with various orientations of coplanar feeds and associated holes covering an angular beam-tilting from −56° to +56° with an offset of 10° at the central frequency. The novelty of this work is; beam-tilting is achieved without the use of any active/passive phase shifters which improves the design in terms of losses and provide a much simpler alternative compared to the complex geometries available in the literature at the 60 GHz band.


Corresponding author: Hamsakutty Vettikalladi, Department of Electrical Engineering, King Saud University, Riyadh, 11421, Saudi Arabia, E-mail:

Funding source: National Plan for Science, Technology and Innovation

Award Identifier / Grant number: 13-ELE1184-02-R

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This project was funded by the National Plan for Science, and Technology and innovation (MAARIFAH), King Abdulaziz City for Science and Technology, Kingdom of Saudi Arabia, Award number (13-ELE1184-02-R).

  3. Conflict of interest statement: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Received: 2021-03-13
Accepted: 2021-06-23
Published Online: 2021-07-13
Published in Print: 2022-01-27

© 2022 Walter de Gruyter GmbH, Berlin/Boston

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