Patent ID: 8259016

Claim:
A clamshell-type multi-band mobile communications device comprising: an upper circuit board; a lower circuit board comprising a ground plane, a feeding point and communications circuitry; a multi-band antenna connected to the communications circuitry and mounted on the lower circuit board, the multi-band antenna having a common conductor connected to the feeding point for coupling the multi-band antenna to the communications circuitry in the mobile communications device; a first radiating arm coupled to the common conductor; a second radiating arm coupled to the common conductor; an upper housing and a lower housing hinged to one another, the upper housing enclosing the upper circuit board and the lower housing enclosing the lower circuit board and the multi-band antenna, the upper and lower housings enabling the upper and lower housings and the upper and lower circuit boards to be selectively folded together into a clamshell configuration or opened into a communications configuration; wherein the lower circuit board is connected to the upper circuit board via a hinge enabling the upper and lower circuit boards to be folded together into a closed position; wherein a projection of an antenna footprint on a plane of the lower circuit board does not intersect a metallization of the ground plane by more than fifty percent; and wherein the lower circuit board is mounted in a first plane within the mobile communications device and the multi-band monopole antenna is mounted in a second plane within the mobile communications device.