Title :
Impact common mode currents on miniaturized UWB antenna performance
Author :
Vorobyov, A.V. ; Zijderfeld, J.H. ; Yarovoy, A.G. ; Ligthart, L.P.
Author_Institution :
Int. Res. Centre for Telecom & Radar, Delft Univ. of Technol.
Abstract :
The main goals of this article are investigation of impact of parasitic (common mode) currents on UWB antenna performance and study on possible designs of UWB baluns. This research is carried out on one of popular designs of UWB antenna for impulse radio, namely elliptically shaped dipole. Computational model for investigation common mode and differential mode currents was built. It was shown that the common and differential mode currents have similar value for this type of antenna. To decrease influence of the common mode current on the antenna a new feeding circuit has been designed. Theoretical results have been verified experimentally
Keywords :
antenna feeds; baluns; shaped beam antennas; ultra wideband antennas; UWB baluns; elliptically shaped dipole; feeding circuit; impact common mode currents; impulse radio; miniaturized UWB antenna performance; parasitic currents; Antenna feeds; Antenna theory; Antennas and propagation; Circuits; Dielectric losses; Dielectric substrates; Dipole antennas; Impedance matching; Radar antennas; Ultra wideband antennas;
Conference_Titel :
Wireless Technology, 2005. The European Conference on
Conference_Location :
Paris
Print_ISBN :
2-9600551-1-X
DOI :
10.1109/ECWT.2005.1617713
