of interference. A higher performance class is also made possible for the prescribed burst and surge tests of the electrical device.
Example of a 0.8 mm connector in its unshielded (left) and shielded (right) versions. Graphic: ept GmbH.
Distribution of current flow through a shield plate. Graphic: ept GmbH.
The risk of signal loss increases as the need for high-speed connectivity surges. The higher the frequency of the signal, the more difficult it is for the recipient to understand the sender. The goal when developing new high-speed connectors is to minimize this interference within the transmission path. Careful consideration of materials, the possibility of EMC shielding, insertion loss, return loss, and crosstalk is essential to optimizing high- speed design potential.
A prerequisite for effective shielding is to use a material with high conductivity. The number of contact points can be decisive for successful shielding. The interference current induced in the shield of the connector in turn generates a magnetic field that can affect the signal contacts. The higher the current, the stronger the magnetic field. The current flow is divided by multiple contacting of the shielding plate and the magnetic field is thus reduced.
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