EM SHIELD FOR INTERNAL ANTENNA OF HANDHELD TERMINALS

• Main Authors: CHIRILA, LAURIAN PETRU, ROY, IAIN CAMPBELL
• Format: Patent
• Language: English; French
• Published: 23.10.2011
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS; WIRELESS COMMUNICATIONS NETWORKS

A portable terminal is disclosed having a plurality of electronic components and an antenna such that at least a portion of the plurality of electronic components and the antenna are housed internally within a housing. The terminal includes a first enclosure of the housing having a first interior to contain the plurality of electronic components and a ground. The terminal has a second enclosure of the housing for coupling to the first enclosure, the second enclosure having a second interior to contain the antenna and for facilitating at least one of receiving or transmitting of EM signals between the antenna and an environment external to the second enclosure. The terminal has an electromagnetic (EM) shield positioned at an interface between the first interior and the second interior, the EM shield including electrically conductive material to absorb EM radiation generated by the plurality of electronic components being directed towards the antenna and to convert at least a portion of the absorbed EM radiation into electrical current and direct the electrical current towards the ground of the first enclosure. Also included is an electrically conductive coupling to couple the EM shield to the ground of the first enclosure.