A novel wideband semi-planar miniaturized antenna
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.