A novel wideband semi-planar miniaturized antenna

Giuseppe Ruvio, Dublin Institute of Technology
Max Ammann, Dublin Institute of Technology

Document Type Article

In IEEE Transactions on Antennas and Propagation,St. Petersburgh, Russia,October, 2007, Vol.55, issue 10, pp.2679-2685 Publication Date: Oct. 2007 Digital Object Identifier: 10.1109/TAP.2007.905844 Available from http://0-ieeexplore.ieee.org.ditlib.dit.ie/stamp/stamp.jsp?tp=&arnumber=4339588&isnumber=4339553


A semi-planar miniaturized antenna which operates over the FCC allocated UWB spectrum is presented. The small antenna comprises a folded conducting element connected to a printed section. Several solutions are introduced which create different current paths increasing the effective dimensions of the antenna. The antenna is examined for the stand-alone case and for the antenna mounted in various locations on a larger handset-type groundplane. The impedance and radiation characteristics show a relative independence of the groundplane size and the antenna location on it. The proposed antenna is a valuable candidate for handset applications due to its compactness. The proposed antenna may be employed in UWB communications systems and exhibits quasi-omnidirectional radiation patterns over the full impedance bandwidth.