Printed UWB pellet-shape microstrip-fed monopolar antenna for 3.1 to 17 GHz
Abstract
A printed pellet-shape microstrip-fed monopolar antenna is proposed for portable UWB devices. An impedance bandwidth of 138.3% within the frequency range of 3.1 –17 GHz for S11 < −10 dB is achieved. Positive gain and constant group delay are obtained with omnidirectional radiation pattern. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 490–494, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23128