A Compact Omnidirectional Microstrip MIMO Antenna for WLAN and WiMAX Applications

A compact omnidirectional microstrip multiple-input multiple-output (MIMO) antenna for WLAN and WiMAX requests is offered. The MIMO antenna comprises of two equivalent elements that has a planar radiator with microstrip-feed and an asymmetry truncated rectangular ground plane. The designed dual-band antenna is actualized by employing bent meander line shapes with different lengths. It is displayed that fine MIMO efficiency can be attained even for small element arranging. The antenna elements are located orthogonally to reach an acceptable isolation with a low ECC between the two input ports. The measured impedance bandwidth for l0 dB return loss is spread in frequency ranges of 2.58-4.08 GHz (%46.5) and 5.53-6.68 GHz (%22.6) which is respectively able to covering WiMAX/C-band/LTE/FS/FSS, and WiMAX/WLAN applications. The designed antenna has a simple structure with small size while presenting consistent almost fully omnidirectional radiation characteristics at its different frequency bands of functioning that is a favorable ability in most of the relevant applications.

Keywords:

Dual band , microstrip antenna , multiple-input multiple-output (MIMO) , omnidirectional pattern