Design of ultra‐compact UWB antenna with band‐notched characteristics for MIMO applications. Issue 12 (26th June 2018)

• Record Type: Journal Article
• Authors: Gautam, Anil Kumar; Yadav, Swati; Rambabu, Karumudi
• Is Part Of: IET microwaves, antennas & propagation. Volume 12:Issue 12(2018)
• Page Start: 1895
• Page End: 1900
• Publication Date: 2018-06-26
• Subjects: ultra wideband antennas -- MIMO communication -- microstrip antenna arrays -- antenna feeds -- millimetre wave antenna arrays -- multifrequency antennas; ultra‐compact UWB antenna design -- band‐notched characteristics -- compact dual‐band‐notched ultrawide band multiple‐input multiple‐output antenna -- UWB MIMO antenna -- antenna elements -- triangular‐shaped patch elements -- tapered microstrip feedline -- ground plane -- funnel‐shaped patch -- J‐shaped slits -- band rejection characteristics -- wireless local area network -- IEEE INSAT‐Super‐Extended C‐band -- antenna diversity performance -- envelope correlation coefficient -- diversity gain -- active reflection coefficient -- bandwidth 31.9 GHz -- frequency 3.1 GHz to 35 GHz; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2018.0012
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : This study describes the design of a very compact dual‐band‐notched ultrawide band (UWB) multiple‐input multiple‐output (MIMO) antenna. The main features of the proposed antenna are its compact dimensions and high isolation between the two antenna elements. The UWB performance of the antenna is attained by designing two identical triangular‐shaped patch elements, which are designed opposite to each other and connected to a tapered microstrip feedline. The ground plane of the proposed antenna consists of a funnel‐shaped patch connected with two triangles at the lower end. In addition, two J‐shaped slits are etched in the radiator to get the band rejection characteristics at wireless local area network band from 5.1 to 5.8 GHz and IEEE INSAT/Super‐Extended C‐band from 6.7 to 7.1 GHz. The designed antenna has the smallest dimension of 26 × 15 × 1.6 m m 3 . Results show that the MIMO antenna has a large impedance bandwidth of 31.9 GHz from 3.1 to 35 GHz. The diversity performance of the proposed antenna is also analysed using different parameters such as envelope correlation coefficient (ECC), diversity gain, total active reflection coefficient and so on. Due to the low mutual coupling of <−24 dB and ECC of <0.2 across the frequency band this antenna is a good candidate for portable UWB applications.