Dielectric resonator‐based four‐element eight‐port MIMO antenna with multi‐directional pattern diversity. Issue 1 (19th October 2018)

• Record Type: Journal Article
• Authors: Das, Gourab; Sahu, Nikesh Kumar; Sharma, Anand; Gangwar, Ravi Kumar; Sharawi, Mohammad S.
• Is Part Of: IET microwaves, antennas & propagation. Volume 13:Issue 1(2019)
• Page Start: 16
• Page End: 22
• Publication Date: 2018-10-19
• Subjects: microwave antenna arrays -- antenna feeds -- antenna radiation patterns -- dielectric resonator antennas -- MIMO communication -- diversity reception -- wireless LAN -- electromagnetic wave polarisation -- multifrequency antennas; dielectric resonator‐based four‐element eight‐port MIMO antenna -- multidirectional pattern diversity -- four‐element eight‐port cylindrical dielectric resonator antenna -- cDRA -- wireless access point applications -- feeding techniques -- orthogonal patterns -- primary radiator -- eight‐port multiple‐input‐multiple‐output antenna system -- field correlation -- antenna elements -- polarised ports -- orthogonal modes -- eight‐port diversity antenna -- WLAN applications -- frequency 5.6 GHz -- frequency 5.9 GHz; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2018.5081
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : This work presents a four‐element, eight‐port cylindrical dielectric resonator antenna (cDRA) with multi‐directional pattern diversity for wireless access point applications. Initially, a dielectric resonator is fed by two different feeding techniques to create two simultaneous orthogonal patterns. This primary radiator is combined with similar radiators in a cross‐configuration to obtain an eight‐port multiple‐input‐multiple‐output (MIMO) antenna system. The antenna elements are placed in such a way that each radiator of the proposed antenna can radiate in a different direction so that the field correlation between the antenna elements is minimum. The proposed diversity antenna consists of four antenna elements and eight polarised ports. Isolation between the ports is improved by generating orthogonal modes in each cDRA and exciting each cDRA to radiate in a different direction. The similarity in simulated and measured results confirm that the proposed eight‐port diversity antenna is useful for the frequency ranges between 5.6 and 5.9 GHz for wireless local area network (WLAN) applications.