GPW-Fed Antennas Reach Dual Bands.

The article discusses the development of a compact resonant antenna for dual-frequency used in standard commercial wireless bands through the combination of coplanar-waveguide (CPW) feeds and metamaterial transmission-line methods. It states that dual-frequency antennas can reduce the number of antennas needed in portable wireless designs including wireless-local-area-network (WLAN) systems and personal communications systems and are typically based on conventional transmission lines.