M.A. Buzova1, I.M. Naryshkin2, I.N. Pestovsky3

1 JSC “SIP RS” (Samara, Russia)

2 Volga State University of Telecommunications and Informatics (Samara, Russia)

3 Russian Institute for Power Radioengineering (Saint Peterburg, Russia)

This paper deals with the placement of antennas of base stations of corporate networks of mobile radio communications of the VHF range on unique objects of complex configuration. Obviously, antennas should be placed as high above the ground as possible to create the large coverage area required for corporate mobile radio systems. At the same time, at present, almost all the upper marks of specialized towers and masts, as a rule, are already occupied, and therefore the placement of new antennas on them is either very difficult. Therefore, antennas have to be placed on high-rise buildings unsuitable for this.

However, the facades of high-rise buildings, as a rule, have a complex geometric configuration. As a result, it becomes difficult to provide a given directional pattern of the antenna system (circular) while maintaining the multichannel radio communication. The work considers the facade of a modern building with a complex configuration. Electrodynamic modeling of the antenna system placed on it, taking into account the nearest environment, has been carried out. It is shown that the use of an antenna system in the form of an antenna array of radiators located along the facade of the building does not provide a solution to the formulated problem. A variant of using 2 pairs of emitters operating independently of each other for 6 independent channels is proposed. The addition of transmitter signals for operation on these antenna elements is carried out using bridge devices based on directional couplers. It is shown that when the emitters work in pairs, it is possible to achieve a quasi-circular radiation pattern with an irregularity of 3 dB.

Buzova M.A., Naryshkin I.M., Pestovsky I.N. Multi-input antenna arrays for placement on unique objects of complex configuration. Radiotekhnika. 2021. V. 85. № 7. P. 22−27. DOI: https://doi.org/10.18127/j00338486-202107-04 (In Russian)

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