ITM Web Conf.
Volume 30, 201929th International Crimean Conference “Microwave & Telecommunication Technology” (CriMiCo’2019)
|Number of page(s)||8|
|Section||Antennas and Antenna Elements (4)|
|Published online||27 November 2019|
Antenna system with omnidirectional radiation pattern for systems with phase algorithms of direction finding
1 Saint Petersburg Electrotechnical University «LETI» 5, Professor Popov Str., 197376, St. Petersburg, Russia
2 JSC «Scientific-research Institute "Vektor''» 14-a, Academician Pavlova Str., 197376, St. Petersburg, Russia
* Corresponding author: firstname.lastname@example.org
Ommidirectional in azimuth plane antennas with horizontal polarization are used in communication systems of McWILL standard, digital television systems of DVB-T2 standard, radio monitoring systems, semi-active ranging using the target illumination with the television broadcast signal, and many other cases. In many cases, radar and radio monitoring systems use phase methods to determine the azimuth and elevation angle of the target. To view all azimuthal angles, ring arrays consisting of omnidirectional emitters, usually also represented by ring arrays, are used. This paper studies the characteristics of an omnidirectional radiating element of electrically small horizontal dipole elements. An expression is derived that relates the radius of the dipole ring array to the number of dipoles and the variation of the resulting radiation pattern. The results are confirmed by experimental studies.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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