Novel dual‐band WLAN antennas with integrated band‐select filter for 802.11 a/b/g WLAN radios in portable devices

Novel dual‐band WLAN antenna system with integrated band‐select filter is designed. This integrated antenna design system provide VSWR <2:1 for both 2.4–2.5 GHz and 4.9–5.85 GHz with omni‐directional radio patterns. Based on these features, a novel architecture for a dual‐band WLAN radio Front‐End in portable devices can be achieved. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1868–1872, 2007; Published online in Wiley Inter‐Science (www.interscience.wiley.com). DOI 10.1002/mop.22601