UWB radiating antenna arrays with strong coupling between the elements
DOI:
https://doi.org/10.1109/ICATT.2007.4425180Keywords:
antenna array mutual coupling, electromagnetic radiation efficiency, large current radiator, pulse excited antennasAbstract
Various layouts of the UWB radiating antenna array consisting of the large current radiators as antenna array elements are discussed in the paper. Influence of the mutual coupling between the antenna elements for the strong and weak coupling cases is investigated. Obtained dependencies of the radiation efficiency versus the mutual coupling factor and the antenna array layout (the vertical array or the horizontal array) are shown and discussed. It was found out that increase of the coupling between the vertical arrays elements results in increase of the vertical antenna array radiation efficiency and decreases the last one if radiating antenna is horizontal array of the large current radiators.References
HARMUTH, H.F. Frequency independent shielded loop antenna. US Patent 4 506 267, 1985.
HARMUTH, H.F. Antennas and Waveguides for Nonsinusoidal Waves. New York: Academic Press, 1984.
POCHANIN, G.P.; KHOLOD, P.V.; MASALOV, S.A. Large current radiator with S-diode switch. IEEE Trans. Electromag. Compat., Feb. 2001, v.43, n.1, p.94-100, doi: http://dx.doi.org/10.1109/15.917950.
HUSSAIN, M.G.M.; AL-HALABI, M.M.M.; OMAR, A.A. Antenna patterns of non-sinusoidal waves with time variation of a Gaussian pulse: Part IV. IEEE Trans. Electromag. Compat., 1989, v.30, p.48-54.
POCHANIN, G.P. Radiation of ultrawideband pulse electromagnetic fields by Harmuth's large current radiators. Ph.D. dissertation, Inst. Radio-Physics and Electronics of NASU, Kharkov, Ukraine, 2003.
POCHANIN, G.P.; MASALOV, S.A. Use of the coupling between elements of the vertical antenna array of LCRs to gain radiation efficiency for UWB pulses. IEEE Trans. Antennas Propag., Jun. 2007, v.55, n.6, p.1754-1759, doi: http://dx.doi.org/10.1109/TAP.2007.898592.
HUSSAIN, M.G.M. Antenna patterns of nonsinusoidal waves with the time variation of a Gaussian pulse. IEEE Trans. Electromag. Compat., Nov. 1988, v.30, n.4, p.504-522, doi: http://dx.doi.org/10.1109/15.8764.
HUSSAIN, M.G.M. Antenna patterns of large-current radiator and closed-loop sensor. Proc. of IEEE Int. Symp. on Electromagn. Compat., 17-21 Aug. 1992, Anaheim, CA, USA. IEEE, 1992, p.494-498, doi: http://dx.doi.org/10.1109/ISEMC.1992.626153.
