Numerical and experimental analysis of a circular slot antenna for UWB communications

Abstract

We present a single-layer circular-slot antenna, fed by a microstrip ending with a rectangular stub, which is suitable for wireless ultra-wideband (UWB) communications. The antenna is fully characterized in terms of impedance bandwidth, phase linearity, gain, and radiation pattern. The time-domain pulse response versus azimuth and elevation is also studied numerically. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 465–470, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20669