Yu.V. Krivosheev – Ph.D.(Eng.), Senior Research Scientist, PJSC «Radiofizika» (Moscow); 

Lecturer, Moscow Institute of Physics and Technology (State University)

E-mail: krivosheev-yury@yandex.ru

A.V. Shishlov – Ph.D.(Eng.), Head of Department, PJSC «Radiofizika» (Moscow); 

Deputy Head of Department, Moscow Institute of Physics and Technology (State University)

E-mail: shishlov54@mail.ru

Yu.A. Suserov – Leading Engineer, PJSC «Radiofizika» (Moscow)

E-mail: jscapex@online.ru

V.V. Denisenko – Ph.D.(Phys.-Math.), Head of Department, PJSC «Radiofizika» (Moscow);  Deputy Head of Department, Moscow Aviation Institute (National Research University) E-mail: jscapex@online.ru

Design, computer simulation and measurement of a high efficiency multimode horn antenna with circular aperture is presented. Such antennas can be used as elements of antenna arrays with limited field-of-view; in particular, for radars or spaceborne communication systems. The procedure of horn geometry optimization is described. Comparison of computer simulation results and measurement results is given. Simulation results of a spaceborne electrically scanned array for a communication satellite are presented. The results confirm high efficiency of the considered antenna and high precision of computer simulation and measurement procedures.

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