Title :
Whistler wave radiation from a pulsed loop antenna located in a cylindrical density duct
Author :
Kudrin, A.V. ; Shkokova, N.M. ; Es´kin, V.A. ; Zaboronkova, T.M.
Author_Institution :
Dept. of Radiophys., Univ. of Nizhny Novgorod, Nizhny Novgorod, Russia
Abstract :
Pulsed radiation from a loop antenna located in a cylindrical duct with enhanced plasma density is studied. An expression for the radiated energy is derived and its distribution over the spatial and frequency spectra of the excited waves as a function of the source and duct parameters is analyzed. Numerical results referring to the case where the frequency spectrum of the antenna current is concentrated in the whistler range are reported. It is shown that under ionospheric conditions, the presence of an artificial duct with enhanced density can lead to a significant increase in the energy radiated from a pulsed loop antenna compared with the case where the same source is immersed in the surrounding uniform magnetoplasma.
Keywords :
loop antennas; whistlers; antenna current; artificial duct; cylindrical density duct; frequency spectra; ionospheric conditions; plasma density; pulsed loop antenna; pulsed radiation; uniform magnetoplasma; whistler wave radiation; Antennas; Ducts; Ionosphere; Magnetic separation; Magnetosphere; Plasmas; density duct; loop antenna; magnetoplasma; pulsed radiation;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
