Design and analysis of 4 × 4 MIMO antenna with DGS for WLAN applications. Issue 9 (22nd November 2021)

• Record Type: Journal Article
• Authors: Malaisamy, K.; Santhi, M.; Robinson, S.
• Is Part Of: International journal of microwave and wireless technologies. Volume 13:Issue 9(2021)
• Page Start: 979
• Page End: 985
• Publication Date: 2021-11-22
• Subjects: Antenna -- defected ground structure -- FR4 -- MIMO -- WLAN; Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S1759078720001658
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract: In this paper, a low profile 4 × 4 multiple input and multiple output (MIMO) antenna is proposed and designed for wireless local area network (WLAN) application using a square split-ring resonator. Initially, a single square-patch antenna is designed with square-shaped split-ring slot. Subsequently, the two-element MIMO antenna is designed and it is extended to four-element MIMO antenna. Finally, the defected ground structure (DGS) is implemented in order to enhance antenna performance. The antenna elements are placed opposite to each other. The mutual coupling between the antennas elements is reduced by DGS. The proposed single, two and four-element antennas operate at 5.8 GHz for WLAN. The overall performance is measured in terms of S parameter, radiation pattern, and envelope correlation coefficient. The simulated results are verified through measurements. The simulated and measured results demonstrate that the proposed 4 × 4 MIMO antenna is the most suitable for WLAN applications.