A Miniaturized Dual-Band MIMO Antenna for WLAN Applications

Author

Khan, Muhammad Saeed ; Shafique, Muhammad Farhan ; Naqvi, Aftab ; Capobianco ; Ijaz, Bilal ; Braaten, Benjamin D.

Author_Institution

Dept. of Electr. & Comput. Eng., North Dakota State Univ., Fargo, ND, USA

Volume

14

fYear

2015

fDate

Dec. 2015

Firstpage

958

Lastpage

961

Abstract

This letter reports on a compact planar dual-band Multiple-Input and Multiple-Output (MIMO) antenna for Wireless Local Area Network (WLAN) applications. The proposed antenna primarily consists of two meandered monopole radiators that are decoupled by introducing a folded Y-shape isolator element and it is shown that the edge coupling between the radiators and isolator introduces the resonance at the lower band. The miniaturization is achieved by passing the signal on to the bottom layer where a meandered line conductor introduces a broadside coupling with the radiator, originating the higher band resonance. The antenna operates between 2.4 GHz to 2.5 GHz and 5.45 GHz to 5.65 GHz with an isolation of more than 25 dB and 15 dB, respectively. The antenna measures only 19 ×23 mm².

Keywords

MIMO communication; UHF antennas; microwave antennas; microwave isolators; monopole antennas; multifrequency antennas; planar antennas; wireless LAN; WLAN application; compact planar dual band multiple input multiple output antenna; dual band MIMO antenna miniaturization; edge coupling; folded V-shape isolator element; frequency 2.4 GHz to 2.5 GHz; frequency 5.45 GHz to 5.65 GHz; isolator; meandered line conductor; meandered monopole radiator; wireless local area network application; Antenna measurements; Antennas; Couplings; Dual band; Frequency measurement; Isolators; MIMO; Diversity; envelope correlation co-efficient (ECC); multiple-input multiple-output (MIMO); wireless local area network (WLAN);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2387701

Filename

7001223