01427942IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 53, NO. 5, MAY 2005 1813 Dual-Band WLAN Dipole Antenna Using an Internal Matching Circuit Zhijun Zhang, Senior Member, IEEE, Magdy F. Iskander, Fellow, IEEE, Jean-Christophe Langer, and Jim Mathews Abstract―A dual-band dipole antenna for wireless local area network (WLAN) is designed and experimentally tested at both the 2.4 and 5 GHz (IEEE 802.11b/g and 802.11a) WLAN bands. The design procedure involves obtaining a full resonance frequency in the 2.4 GHz band and then using a matching network to achieve a secondary resonance at the 5 GHz band. It is shown that by correctly designing the dipole, the matching network can be simplied to only one series inductor. The design was experimentally veried by constructing a dipole on a FR4 board ……