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.

fYear

2005

Firstpage

285

Lastpage

288

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Technology, 2005. The European Conference on

Conference_Location

Paris

Print_ISBN

2-9600551-1-X

Type

conf

DOI

10.1109/ECWT.2005.1617713

Filename

1617713