Ultrawideband end-fire radiation of a planar low profile dipole-slot antenna backed by ground plane
DOI:
https://doi.org/10.1109/ICATT.2015.7136859Keywords:
end-fire antenna, ultrawideband antenna, dipole-slot antenna, low profile antennaAbstract
Forming ultrawideband (3.2:1) end-fire radiation mechanism of a low profile dipole-slot antenna backed by a ground plane at wavelengths close to the distance of 0.5λ from the plane are considered. It has been shown that at this frequencies the dipole-slot radiation differential phase shift in forward-backward directions is close to 180°. Therefore, the radiation of the dipole-slot antenna is summarized in-phase with reflector radiation in forward direction.
Numerical research of the antenna has been carried out using the own developed software package crystal_U, that realizes the authors' current and charge integral equations method. The antenna characteristics obtained were verified by HFSS code.
References
DUBROVKA, F.F.; TOLKACHOV, O.V. A new planar endfire ultrawideband antenna with reflector diffraction compensation. Proc. of Int. Symp. on Ultrawideband and Ultrashort Impuls Signals, 2014, p.42-43.
TOLKACHEV, A.V.; DUBROVKA, F.F. Numerical analysis of small parabolic antennas using the method of current and charge integral equations. Radioelectron. Commun. Syst., 2013, v.56, n.3, p.114-126, doi: http://dx.doi.org/10.3103/S0735272713030023.
DUBROVKA, F.F.; TOLKACHEV, A.V. An effective method of numerical solution of a boundary electrodynamics problem for arbitary conducting surfaces. Radioelectron. Commun. Syst., 2009, v.52, n.11, p.573-590, doi: http://dx.doi.org/10.3103/S0735272709110016.
