Internal electromagnetic radiation shield with ground connection for removable small form factor transceivers

Abstract

An electromagnetic radiation shield useful to attenuate or prevent the escape of electromagnetic radiation from the front of transceiver opto-electronic subassemblies resident in an opening or port in the housing of an electronic system is formed with both an aperture for each barrel of the opto-electronic subassemblies and a plurality of extensions projecting outwardly from the shield. The distal ends of the extensions are bent or shaped to form smoothly curved contact surfaces that project outside the transceiver module to make contact with a grounded member of the housing or other electrically grounded portion of the electronic system of which the transceiver module is a part. The electromagnetic radiation shield is assembled with the transceiver subassemblies and disposed within a transceiver module to be inserted into a communications port of a computer or server. The transceiver module contains elements that may generate and radiate electromagnetic energy. The electromagnetic energy must be prevented from escaping or attenuated to prevent electromagnetic interference in the other nearby electronic components or systems susceptible to electromagnetic interference.