Aerospace Instrument-Making Annotation << Back Estimation of shielding effectiveness for the connector enclosure of airborne radio electronic equipment of space vehicle Komnatnov M.E. Gazizov T.R. The shielding effectiveness at different distances inside the enclosure of the SNP 339 connector for the opened and reduced aperture on the cable side when exciting a plane electromagnetic wave on the aperture side is calculated. Simulation results of the shielding effectiveness at the beginning and the end of SNP 339 enclosure in the fre-quency band 10 kHz – 20 GHz for the aperture value 2…8 mm and the step 1 mm are given. It is shown that the shielding effectiveness for frequencies up to 1 GHz with aper-ture value 2 mm increases as compared with the opened aperture by approximately 20 dB, and between the resonance frequencies – by 10 dB, while at the resonance fre-quencies the shielding may undergo degradation. Key words: shielding effectiveness, connector, airborne electronic equipment, simulation, TALGAT. Contacts: E-mail: maxmek@mail.ru Pp. 36-42.