Patent ID: 6292148
Filing Date: 2001-09-18
Classification: H01Q

Abstract:
Radio communications apparatus comprising:a first enclosure including an antenna portion, a high-frequency circuit and a first conductive member formed on an internal surface of said first enclosure; anda second enclosure including a communication control circuit, an interface portion, and a second conductive member formed on an internal surface of said second enclosure; anda hinge portion which couples said first enclosure and said second enclosure to be able to hold into small size unit,wherein in case of said antenna portion being housed, said internal surface of said first enclosure is used part of said first enclosure as an antenna ground while the high-frequency ground for said first and second enclosures is separated at the central hinge in order to prevent high-frequency currents flowing through the ground for the antenna from flowing into said second enclosure, whereby reducing a noise originating from the control circuit of the information processing apparatus or from the communication control circuit of the main unit as a coupling quantity entering said antenna or the ground for the antenna, and that said radio communications apparatus is connected to said information processing apparatus via the interface thus confining a noise originating inside said second enclosure via a shielded structure of said internal surface of said second enclosure.