DocumentCode
2168361
Title
The Antennas for Mobile Radio Communications
Author
Krjukov, A. ; Ovsyanikov, V.
Author_Institution
Radiophysics Department, Dniepropetrovsk National University, build. 12, Naukovy - 9 str., Dniepropetrovsk, Ukraine, 49050, e-mail: root@ap1.net-rff.dsu.dp.ua
fYear
2001
fDate
24-26 Sept. 2001
Firstpage
1
Lastpage
4
Abstract
The results of new two-frequency two-vibrator radiators researches are presented. It is shown that under certain ratios of operational frequencies there is a current cut-off effect between vibrators that provides optimum quasiisotropic patterns. The absence of this effect in a few ratios of frequencies does not allow to receive necessary weak-directional patterns for mobile radio means of continuous communication. The way of improving the directional characteristics of two-frequency antennas for any ratio of operational frequencies is proposed. The outcomes of researches are obtained by methods of integral equations and equivalent lines.
Keywords
Cutoff frequency; Dipole antennas; Impedance; Integral equations; Land mobile radio; Mobile antennas; Mobile communication; Receiving antennas; Transmitting antennas; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 2001. 31st European
Conference_Location
London, England
Type
conf
DOI
10.1109/EUMA.2001.338906
Filename
4140279
Link To Document