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Design and Optimization of a Compact Super-Wideband MIMO Antenna with High Isolation and Gain for 5G Applications
Abstract
This paper presents a super-wideband multiple-input multiple-output (SWB MIMO) antenna with low profile, low mutual coupling, high gain and compact size for microwave and millimeter wave (mm-wave) fifth-generation (5G) applications. A single antenna is a simple elliptical-square shape with a small physical size of 20 × 20 × 0.787 mm3. The combination of both square and elliptical shapes results in an exceptionally broad impedance bandwidth spanning from 3.4 to 70 GHz. An-tenna dimensions are optimized using the trust-region algorithm to enhance its impedance band-width, and maintain the gain within a predefined limit across the entire band. For that purpose, regularized merit function is defined, which permits to control both the single antenna reflection response and gain. Subsequently, the SWB MIMO system is constructed with four radiators ar-ranged orthogonally. This arrangement results in high isolation, better than 20 dB, over a fre-quency band from 3.4 to 70 GHz band. Further, the system achieves an average gain of approxi-mately 7 dB below 45 GHz and a maximum gain equal to 12 dB for 70 GHz. The system exhibits excellent diversity performance throughout the entire bandwidth, as evidenced by the low enve-lope correlation coefficient (ECC) (<3∙10−3), total active reflection coefficient (TARC) (≤−10 dB), and channel capacity loss (CCL) (<0.3 bit/s/Hz) metrics, as well as high diversity gain (DG) of approxi-mately 10 dB. Experimental validation of the developed SWB MIMO demonstrates a good match-ing between the measurements and simulations.
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Authors (3)
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Bashar Esmail
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/electronics12224710
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Electronics
no. 12,
pages 1 - 15,
ISSN: 2079-9292 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Esmail B., Kozieł S., Pietrenko-Dąbrowska A.: Design and Optimization of a Compact Super-Wideband MIMO Antenna with High Isolation and Gain for 5G Applications// Electronics -Vol. 12,iss. 22 (2023), s.1-15
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/electronics12224710
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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