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Design features and development trends of power supply systems for onboard AESA radars

DOI 10.18127/j20700814-201905-09

Keywords:

N.A. Kushnerev – Ph.D.(Eng.), Head of Laboratory, JSC «Corporation «Vega» (Moscow)
E-mail: kushnerev@inbox.ru
M.V. Rodin – Ph.D.(Eng.), Head of Postgraduate Department, JSC «Corporation «Vega» (Moscow); Associate Professor, Department «Radio Electronic Systems and Devices», Bauman Moscow State Technical University
E-mail: mail@mrodin.ru


Radars have a special place in the onboard monitoring and weapons control systems. Currently abroad and in Russia a lot of attention is paid to solving numerous problems of design, creation of element base and manufacturing of onboard radar with active electronically scanned arrays (AESA). AESA is the most hardest and one of the most energy-consuming system in the radar, while it has a significant impact on performance characteristics of the entire complex in which it is operated. For these reasons, the design of the AESA power supply system is one of the most important stages in the development of the radar.
The article based on the materials of the published sci-tech literature, as well as the results of the authors' own works, shows that one of the conditions for improving the efficiency of the onboard radar is to improve the configuration of AESA power supply systems, extending of voltage converters for T/R modules, improve the reliability of power supply systems, as well as further improve the element base and technologies for creating power electronics devices for use in AESA. The comparative analysis of domestic and imported element base of switching converters is carried out. Despite the high level of development of the dc-dc converters, the industrial development of new voltage converters, characterized by high values of specific indicators and reliability, will make a breakthrough in the technology of AESA.
At the same time, the performance features of modern unified voltage converters of both domestic and foreign production (in particular, the inability to turn on and work on a large capacity, a small range of output voltage adjustment) extremely limit the prospects for their use in the latest onboard radar AESA power supply systems.
It is concluded that in order to ensure high reliability of radar AESA power supply systems, it is necessary to take into account the presence of a set of transient processes, as well as the overcurrent of the voltage converters used.
In addition, it was concluded that it is necessary to develop their own power supplies for advanced radar AESA in order to ensure independence from imported components.

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