Study of a CPW‐fed circular slot antenna for UWB communications

A numerical and experimental study of a circular-slot antenna, fed by a coplanar waveguide with a rectangular stub, is proposed in this paper for ultra-wideband communications. The antenna impedance bandwidth, phase linearity, gain and radiation patterns are presented, together with the time-domain impulse response. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2272–2277, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21900