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Broadband circularly polarized 2 × 2 MIMO array for midband 5G wireless applications

Published online by Cambridge University Press:  28 June 2022

Aniket Gunjal Open the ORCID record for Aniket Gunjal [Opens in a new window]  and
Ujwala Kshirsagar Open the ORCID record for Ujwala Kshirsagar [Opens in a new window]
Aniket Gunjal
Affiliation:
Symbiosis Institute of Technology, Symbiosis International (Deemed University), Lavale, Pune, India Savitribai Phule Pune University (SPPU), Ganeshkhind, Pune, India
Ujwala Kshirsagar*
Affiliation:
Symbiosis Institute of Technology, Symbiosis International (Deemed University), Lavale, Pune, India
*
Author for correspondence: Ujwala Kshirsagar, E-mail: kshirsagarujwala9@gmail.com
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Abstract

The novel compact size orthogonally fed 2 x 2 Multiple Input and Multiple Output (MIMO) array antenna for mid-band Fifth Generation (5G) wireless application is presented. The antenna configuration consists of diamond-shaped patches employed at the top of substrate. The V-shaped common ground slot structure is employed at the bottom of substrate. A broadband circular polarization is achieved by simply combining two circular polarization modes obtained from ground V slot and top patch feed structure. Mainly, the impedance bandwidth (IBW) and gain are enhanced by protruding slots on ground and cutting edges of patches. The measured result shows that 1.70 – 8.00 GHz (6.30 GHz) of IBW, 8.8 dBic of peak gain, and 3 dB axial ratio bandwidth from 1.81 – 3.87 GHz (2.06 GHz) are obtained. The proposed antenna performances are experimentally validated by fabricating and testing it for measured result analysis without using power divider.

Keywords

GainIsolationPolarization diversitySlot antenna
Type
Antenna Design, Modeling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 15 , Issue 4 , May 2023 , pp. 674 - 682
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Copyright
© The Author(s), 2022. Published by Cambridge University Press in association with the European Microwave Association

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