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- Title
G-shaped band-notched ultra-wideband MIMO antenna system for mobile terminals.
- Authors
Toktas, Abdurrahim
- Abstract
Low-profile band-notched G-shaped ultra-wideband (UWB) multiple input multiple output (MIMO) antenna design for mobile terminals has been presented. In this context, two UWB MIMO antenna systems have been designed: The first is with square elements and the second is with G-shaped elements. An MIMO antenna with two symmetrical square elements each of 8 × 8 mm2 operating between 2.2 and 13.3 GHz was firstly designed for the UWB applications. Each square element was fed through a 50-Ω microstrip transmission line (MTL). A thin strip line was designed at the end of MTL to provide impedance matching. Although the isolation level between the elements was satisfactory for efficient MIMO implementation, a T-shaped strip on the ground was employed to further improve the isolation for low frequency. The frequency range of 4.4-6.2 GHz which is an important band of wireless local area network (WLAN) standard was then notched by forming a G-shaped structure on the square element. The performance of G-shaped antenna system was studied in terms of important antenna characteristics and MIMO parameters. The results demonstrate that the G-shaped MIMO antenna has nearly omnidirectional patterns, stable gain and good diversity performance besides having low-profile elements.
- Subjects
MIMO systems; BANDWIDTHS; MICROSTRIP antenna arrays; ELECTRIC lines; WIRELESS LANs
- Publication
IET Microwaves, Antennas & Propagation (Wiley-Blackwell), 2017, Vol 11, Issue 5, p718
- ISSN
1751-8725
- Publication type
Article
- DOI
10.1049/iet-map.2016.0820