DEVELOPMENT OF construction of  THE UHF BAND DIELECTRIC DOME LENS ANTENNAS WITH IMPROVED AERODYNAMIC CHARACTERISTICS AND HIGH MECHANICAL STRENGTH

 

Yu.V. Medvedev

FSBI “16-th CSRTI” MoD of Russia

 

The paper is received on September 30 , 2014

 

Abstract. Designs of dielectric dome lens antennas are presented, areas of their application are defined. The numerical research of the aerodynamic and energy parameters of the dome lens antennas on the aircraft is carried out. The dependencies of the aerodynamic drag coefficient and antenna gain for the geometric dimensions of the lens of the antenna on the aircraft, which accomplishes flight at the height of 8 km above sea level at a rate of 400km/h are obtained. The possibility of reduction in the aerodynamic drag coefficient of antenna by decreasing the geometric dimensions of dome lens with the retention of the value of the antenna gain is shown. The numerical research of the antenna gain and factor of safety for max von Mises criterion is carried out. The possibility of increasing more than 2 times the factor of safety by changing geometric parameters of the lens in the range of 20% on the baseline values, and also their rational selection with the value retention of the required antenna gain is shown.

Keywords: dielectric dome lens antennas, dome lens, wide angle electrical scanning, scanning area, phased antenna array, aerodynamic drag coefficient, coefficient of safety factor, antenna gain.