O.S. Alekseev – Head of Division, JSC V.Tikhomirov Scientific Research Institute of Instrument Design (Zhukovsky) D.V. Bronnikov – Post-graduate Student, Department of Radiophysics, Antennas and Microwave Technics  of Moscow Aviation Institute (National Research University)

D.V. Bagno – Ph.D. (Eng.), Associate Professor, Department of Radiophysics, Antennas and Microwave Technics,  Moscow Aviation Institute (National Research University)

E-mail: rw3fo@yandex.ru

A.E. Zaikin – Ph.D. (Eng.), Senior Research Scientist, Department of Radiophysics, Antennas and Microwave Technics,  Moscow Aviation Institute (National Research University)

E-mail: antenna@mai.ru

E.V. Ilyin – Ph.D. (Eng.), Associate Professor, Department of Radiophysics, Antennas and Microwave Technics,  Moscow Aviation Institute (National Research University)

Coupling devices are discussed for transmit-receive module connection to the waveguide radiating elements in X-band AESA. Different types of stripline-to-waveguide transitions and coaxial-to-waveguide transitions are considered which implement substrate integrated waveguide (SIW) technology as well as squeezing multipin RF connectors. Results of electromagnetic modeling are presented.

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