Compact Slot Antenna for Mimo Applications in the Wlan Bands

A rectangular slot antenna fed by a coplanar waveguide is proposed for dual-band wireless local area network (WLAN) operations. The measured −10-dB bandwidth for return loss is from 2.1 to 2.95 GHz and 5.05 to 6.25 GHz, covering all the 2.4/5-GHz WLAN bands. A multifeed four-element planar array was designed and simulated. It shows that the features of small size, uniplanar structure, good radiation characteristics, and small mutual coupling are promising for multi-input multi-output applications. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2490–2493, 2013