O. V. Vasil-ev - Ph.D. (Eng.), Head of Department of JSC Moscow Scientific-Research Radio Engineering Institute E. V. Ovchinnikova - Ph.D. (Eng.), Associate Professor, Moscow Aviation Institute (National Research University). E-mail: oea8888@gmail.com S. G. Kondrat-eva - Post-graduate Student, Moscow Aviation Institute (National Research University). E-mail: kondratieff89@ya.ru M. M. Kulyastov - Post-graduate Student, JSC Moscow Scientific-Research Radio Engineering Institute. E-mail: makkool@yandex.ru

At the present stage of development of satellite communication systems it is necessary to increase the operating efficiency of antennas. Recently, there has been a transition from the aperture antennas to the antenna arrays. The planar arrays of printed radiators are widely used, because they have manufacturability and low weight and size and cost characteristics. However, there are some limitations of planar antenna arrays: they have a relatively narrow operating bandwidth and large losses in the distribution system. Currently, there is a need to expand the functionality of satellite communication systems. A promising direction is the development low-profile antenna modules of satellite communication centimeter waveband with small losses. The waveguide antenna systems have high radiation power and good manufacturability. Waveguide radiators with the circular cross section satisfy the requirements to electric strength and dimensional characteristics of the structure of the waveguide array. The article has presented the design procedure and the experimental model of the concentric circular array of slot radiators. Directional characteristics of the antenna array have been determined and experimentally researched.

 

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