A band-notched CPW fed antenna with ring ground for ultra-wideband applications

A new CPW-fed antenna with band-notched is proposed for ultra-wideband antenna applications. It consists of a ring strip connecting with two triangle patches as the ground and a rectangular patch connecting with a strip as the radiator and feeding line. A narrow slot is embedded in the radiator to obtain notched-band characteristics within bandwidth of 5–6 GHz. Simulated results gotten by FDTD method are given and compared with the experimental results. Measured results show that the antenna can cover a bandwidth from 2.5 to 10.7 GHz for VSWR < 2 except the notched-band. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1691–1694, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25333