D. V. Tatarnikov - Dr.Sc. (Eng.), Professor, Department of Radiophysics, Antennas and Microwave Technique, Moscow Aviation In-stitute (National Research University); Antenna Design Chief, Topcon Positioning Systems, Inc. E-mail: DTatarnicov@topcon.com I. M. Chernetsky - Post-graduate Student, Department of Radiophysics, Antennas and Microwave Technique of Moscow Aviation Institute (National Research University); Engineer, Topcon Positioning Systems, Inc. E-mail: IChernetskiy@topcon.com