A 2.4 GHz planar printed antenna with omni-directional horizontally polarized pattern for WLAN applications

This paper presents the design simulation, implement, and measurement of a 2.4 GHz omni-directional horizontally polarized planar printed antenna for WLAN application. The HFSS 3-D EM simulator is used for design simulation. The antenna is fabricated on a double-sided FR-4 printed circuit board. The antenna pattern measurements are performed for the antenna is alone in free space, printed on a PCMCIA card, and that inserted inside a notebook PC. In addition to be used alone for a horizontally polarized antenna, it can be also a part of a diversity antenna.