Design and implementation of reconfigurable quad-band microstrip antenna for MIMO wireless communication applications

A quad band planar microstrip-line-fed printed circuit board (PCB) antenna for different applications is introduced in this paper. The proposed antenna can be used in mobile applications such as GSM 900 and DCS-1800. It can be also used for Bluetooth and wireless local area network (WLAN) applications at 2.4 GHz. The antenna has good characteristics at 2.3 GHz and 3.5 GHz which enable it to be used for mobile WiMAX 2.3-2.4 GHz applications and Wi-Fi 2.4-2.45 GHz applications. The antenna is built on Taconic substrate with a finite ground plane on the other side of the substrate. Simulation as well as measured results shows that the antenna has good performance in all frequency bands of operation. A reconfigurable antenna is designed and simulated using PIN switches for recent communication applications such as Cognitive radio (CR). Also, a two-element antenna system is designed, simulated and measured for multiple-input-multiple-output (MIMO) applications.