Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Radio Physics and Radio Astronomy

ISSN Imprimer: 2152-274X
ISSN En ligne: 2152-2758

Archives: Volume 1, 2010 to Volume 3, 2012

Radio Physics and Radio Astronomy

DOI: 10.1615/RadioPhysicsRadioAstronomy.v3.i3.100
pages 265-271

DIFFRACTION EFFECTS IN CYLINDRICAL MONOPOLE AND DIELECTRIC DISK ANTENNAS

I. V. Ivanchenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085, Ukraine
N. A. Popenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085
M. M. Khruslov
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine; V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61022, Ukraine

RÉSUMÉ

Based on experimental studies and simulation modelling, the influence of diffraction effects on the radiation characteristics of cylindrical monopole antennas and dielectric disk antennas is determined under conditions when the electrodynamic parameters of antenna components are changed. In particular it is established that the oscillating dependence of the angle of maximum radiation and the resonant frequency of cylindrical monopole antennas with the monopole height dr1 = λ/4 as function of the ground plane radius are explained by the different spatial structure of electromagnetic field in the inductive region of the antenna with the ground plane radius multiple of λ/2 and of odd number of times λ/4 (λ is the wavelength in free space). It is shown that the spatial distributions of electromagnetic fields as the "spatial wave grating" are formed in the inductive region of antennas under test.


Articles with similar content:

AZIMUTH MODES IN QUASI-OPTICAL DIELECTRIC RESONATOR WITH DIFFRACTION GRATING
Telecommunications and Radio Engineering, Vol.72, 2013, issue 10
Anatoly Ivanovich Fisun, Oleg I. Belous, O. N. Sukhoruchko, V. L. Pazynin
A SCHWARZ ALGORITHM FOR THREE-DIMENSIONAL DIFFRACTION PROBLEMS
Telecommunications and Radio Engineering, Vol.74, 2015, issue 1
M. A. Gnatyuk, A.M. Sjanov, V. M. Morozov
INVESTIGATION OF THE POSSIBILITY FOR DESCRIPTION OF THE SPATIAL FIELD DISTRIBUTION NEAR A MOBILE RADIO DIRECTION FINDER ANTENNA SYSTEM BY A LAURENT SERIES
Telecommunications and Radio Engineering, Vol.71, 2012, issue 9
Yu. G. Pasternak, V. V. Negrobov, A. V. Ashikhmin, Yu. A. Rembovskii
SIMULATION OF STRIPLINE ANTENNA FOR RIGHT- AND LEFT-HAND CIRCULAR POLARIZATION
Telecommunications and Radio Engineering, Vol.69, 2010, issue 18
Ya. N. Chepurnyy, N.G. Baturin, G. A. Chukanova
A Laser-Based Polarization Interferometer for Plasma Diagnostics at Submillimeter Wavelength
Telecommunications and Radio Engineering, Vol.51, 1997, issue 10
V. K. Kononenko, Ye. M. Kuleshov, V. K. Kiseliov, P. K. Nesterov, B. N. Knyaz'kov, M. S. Yanovsky, Yu. Ye. Kamenev