Experimental and theoritical investigation of electromagnetic shielding efectiveness

Shielding is one of the methods to protect electronic devices and systems to electromagnetic interference. Electromagnetic Shielding is generally used to reduce emissions. Shielding enclosures are important to protect equipments from the effect of an exterior field, and filtering emission. Aperture design on electronic equipments? shielding enclosures is a fundamental aspect of getting better electromagnetic emission and susceptibility. Apertures, slots, cable penetrations, unused connector ports and others breaks in the shield can influence significantly the effectiveness of shielding enclosures. In this study, electromagnetic shielding effectiveness has been examined in order to obatin usefull results about enclosure apertures of industrial systems, and it has been aimed to investigate broad band shielding effectiveness in between 100MHz to 1GHz and 6GHz to 13GHz. Theoritical SE calculations for 100MHz to 1GHz has been compared with measurements.