High isolation and compact MIMO antenna system with defected shorting wall. Issue 2 (24th April 2014)

• Record Type: Journal Article
• Authors: Dai, Xi-Wang; Li, Long; Wang, Zhen-Ye; Liang, Chang-Hong
• Is Part Of: International journal of microwave and wireless technologies. Volume 7:Issue 2(2015)
• Page Start: 167
• Page End: 172
• Publication Date: 2014-04-24
• Subjects: High isolation, -- Defected shorting wall, -- Aperture-coupled; Wireless communication systems -- Periodicals; Microwave circuits -- Periodicals; Radio frequency -- Periodicals; 621.381305
• DOI: 10.1017/S1759078714000580
• Languages: English
• ISSNs: 1759-0787

Abstract

Abstract : In this paper, a compact multiple-input multiple-output (MIMO) antenna system with high isolation is proposed for 2.4 GHz wireless local area network (WLAN) application. The system is composed of two aperture-coupled shorted patch antennas with a spacing of 4 mm (only 0.032λ). The antenna is fed with an H-shaped coupling slot, and the defected shorting wall is used for high isolation. The proposed MIMO system exhibits an isolation of better than −20 dB and a maximum isolation of −43 dB at the central frequency. The envelope correlation coefficient is less than 0.01. The simulated and measured results show that the proposed antenna is a good candidate for MIMO system with higher isolation and better diversity.