Ka-band Flexible Koch Fractal Antenna with Defected Ground Structure for 5G Wearable and Conformal Applications

Jilani, S. F., Aziz, A. K., Abbasi, Q. H. and Alomainy, A. (2018) Ka-band Flexible Koch Fractal Antenna with Defected Ground Structure for 5G Wearable and Conformal Applications. In: 2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Bologna, Italy, 09-12 Sep 2018, pp. 361-364. ISBN 9781538660096 (doi: 10.1109/PIMRC.2018.8580692)

Abstract

This paper demonstrates a low profile, compact and conformal antenna design for 5th generation (5G) wireless devices. The antenna design incorporates two bandwidth-enhancement techniques of fractal geometry and defected ground structure (DGS). The Koch fractal radiating patch is developed with a DGS coupled coplanar waveguide (CPW) feeding. Highly precise fabrication is performed on a thin Polyethylene Terephthalate (PET) film using the additive manufacturing process of conductive ink-based inkjet printing. The results show that the antenna offers a bandwidth which covers Ka-band (26.5-40 GHz) and a peak realised gain of 9.7 dBi at 39.7 GHz. The integrated aperture in the ground improves the directivity by converging the radiation in the axis orthogonal to the antenna’s plane. The proposed flexible antenna is well suited for integration in millimetre-wave (MMW) based wearable and conformal wireless devices.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Abbasi, Professor Qammer
• Authors: Jilani, S. F., Aziz, A. K., Abbasi, Q. H., and Alomainy, A.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISSN: 2166-9589
• ISBN: 9781538660096
• Published Online: 20 December 2018
• Copyright Holders: Copyright © 2018 IEEE
• First Published: First published in 2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): 361-364
• Publisher Policy: Reproduced in accordance with the publisher copyright policy