A compact two-element UWB MIMO antenna with improved isolation using parasitic elements

Name: Kempanna, Subhash Bodaguru

Organization : REVA University, School of ECE

Name: Biradar, Rajashekhar C.

Organization : REVA University, School of ECE

Name: Ali, Tanweer

Organization : Manipal Academy of Higher Education. Manipal Institute of Technology

Name: Chaurasia, Abhi

Organization : Manipal Academy of Higher Education. Manipal Institute of Technology

Name: Charith, Salla Sai

Organization : Manipal Academy of Higher Education. Manipal Institute of Technology

Name: Kaul, Richa

Organization : Manipal Academy of Higher Education. Manipal Institute of Technology

keyword: Defected ground plane

; Single band

; MPA

; Slots

; MIMO

; Parasitic element

; Isolation

Abstract: The swift development of wireless technology has increased the need for high data rates, greater connection dependability, and increased spectrum efficiency. A combination of Ultra-Wideband (UWB) technology with Multiple-Input Multiple-Output (MIMO) systems is recognized as a potential response to these needs. The proposed antenna design combines the benefits of UWB technology, such as wide frequency bandwidth and low power consumption, with MIMO's spatial diversity. The UWB antnna structure is developed by integrating an elliptical shape into the standard circular monopole antenna, accompanied by a rectangular slotted ground plane that is positioned at a lower level. To produce a two port UWB antenna, the UWB antenna is replicated horizontally with a separation of 0.15λ (λ calculated at 4.6 GHz). The introduction of a caterpillar-shaped parasitic element onto the radiator serves to mitigate the inherent field coupling that occurs among the antenna elements. The stop band characteristics of parasitic elements help in achieving improved isolation. The proposed UWB MIMO has an overall dimension of 21.5×34×1.6 mm3 and exhibits isolation levels exceeding 20 dB throughout its operational frequency range spanning from 4.6 to 13.6 GHz. The UWB MIMO antenna, which is being proposed, has been created using a FR4 substrate. It has been subjected to analysis in order to evaluate its radiation qualities and MIMO diversity parameters. The simulated and measured results demonstrate concurrence

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2024

Modified: 2025-01-15

Issued: 2025-01-15

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BibliograpyCitation : In Rajamangala University of Technology Krungthep. 12th International Electrical Engineering Congress (iEECON 2024) (pp.92-96). Bangkok : Rajamangala University of Technology Krungthep

eng

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