Erratum: Spherical representation of omnipotent Smith chart

Originally published Microwave Opt Technol Lett 50: 2452–2455, 2008. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2255, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24515