Two-band antennas of microwave range of waves

Authors

  • V. V. Ovsyanikov Oles Honchar Dnipro National University, Dnipro, Ukraine
  • D. M. Svynarenko Oles Honchar Dnipro National University, Dnipro, Ukraine
  • O. R. Beznosova Oles Honchar Dnipro National University, Dnipro, Ukraine
  • L. Z. Tsypko Oles Honchar Dnipro National University, Dnipro, Ukraine

DOI:

https://doi.org/10.15421/331915

Keywords:

two-band antenna with shunts, current distribution over the antenna, load values and coordinates of their inclusion in the antenna, the radiation patterns of antenna, inductive load

Abstract

The article presents the results of theoretical and experimental studies of the current distribution, the values and coordinates of the load connection points, as well as the radiation patterns for two-band linear microwave antennas with quarter-wave two-wire shunts of the upper range and concentrated reactive loads. Such antennas are promising for use in two-band duplex mobile satellite systems for receiving and transmitting data, for example, GLOBALSTAR, IRIDIUM, ELLIPSO, GPS and others. Theoretical studies are carried out by the method of integral equation. It is found that with a constant length of a quarter-wave shunt and different sizes of the antenna, the antenna can acquire or lose the property of two frequencies. A method for eliminating this negative phenomenon is proposed.

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Published

17-10-2019

Issue

Vol. 27 No. 1 (2019)

Section

Articles