DocumentCode :
3310168
Title :
Radiation Characteristics of the Cylindrical Monopole Imbedded in the Dielectric Layer
Author :
Ivanchenko, I.V. ; Popenko, N.A. ; Khruslov, M.M. ; Chernobrovkin, R.E.
Author_Institution :
Usikov Inst. for Radiophys. & Electron., NAS of Ukraine, Kharkiv
Volume :
2
fYear :
2007
fDate :
25-30 June 2007
Firstpage :
702
Lastpage :
704
Abstract :
In this paper the computational modelling of cylindrical monopole antennas in the dielectric layers has been carried out and the experimental results on the investigations of the given class of antennas have been analyzed. The dielectric layer availability provides the beamwidth increasing and the elevation angle of peak directivity moving to the azimuth in the radiation pattern in comparison with the usual cylindrical monopole antenna. At the same time the rest of power characteristics remain virtually the same. We have determined that for the ground plane radius R > 7lambda/4 the resonant modes of antenna appear and radiation pattern becomes the multi-beam one. In this case a number of lobes depend on the spatial frequency of surface waves in the dielectric layer. Furthermore, it is accompanied by increasing the radiation intensity of the lobes closer to zenith.
Keywords :
antenna radiation patterns; monopole antennas; permittivity; cylindrical monopole antennas; dielectric layer; multi-beam pattern; radiation characteristics; radiation pattern; resonant modes; surface waves; Antenna measurements; Antenna radiation patterns; Azimuth; Broadband antennas; Computational modeling; Dielectric measurements; Frequency; Manufacturing; Mirrors; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves and Workshop on Terahertz Technologies, 2007. MSMW '07. The Sixth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
1-4244-1237-4
Type :
conf
DOI :
10.1109/MSMW.2007.4294784
Filename :
4294784
Link To Document :
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