Design of dual wideband WLAN antenna

A high performance monopole antenna fabricated using a folded wire line and a metal patch as radiator is presented. A prototype of the proposed monopole antenna with a compact area size of 20 mmx10 mm is implemented, and the multi-band WLAN antenna shows a wide operating bandwidth of about 200 MHz and 1000 MHz for low band and high band, bandwidth, making it easy to cover the IEEE 802.11a, IEEE 802.11b, IEEE 802.11g and IEEE 802.11n (MIMO) bands for wireless communication and future 4G wireless operation of a mobile VoIP/VoWLAN handset phone.