Uni-Planar Dual-Band Monopole Antenna for 2.4/5 GHz WLAN Operation in the Laptop Computer

A novel uni-planar dual-band monopole antenna capable of generating two wide bands for 2.4/5 GHz WLAN operation is presented. The antenna has a simple structure consisting of a driven strip and a coupled shorted strip. The antenna occupies a small area of 6 times 20 mm
²
on an FR4 substrate. The small area allows the antenna to be easily employed in the narrow space between the top edge of the display panel and the casing of the laptop computer to operate as an internal antenna. It is believed that the size of the antenna is about the smallest among the existing uni-planar internal laptop antennas for 2.4/5 GHz WLAN operation.