Spread spectrum radio incorporated in a PCMCIA Type II card holder

Claim 1

An electrically shielded and grounded, electrostatic discharge resistant memory card assembly comprising: a memory card circuit board formed from a plurality of layers of circuit planes having a top surface and a bottom surface, all of the circuit planes on one side of a ground plane are digital circuits planes and all of the circuit planes on the opposing side of the ground plane are analog circuits planes; and a perimeter ground trace on three sides of each said surface and a connector on a fourth side, where the ground plane is disposed between said top and bottom surfaces; a memory card holder comprising an open connector end, an opposing end having a closed mating header and a pair of side rails for slidably and rotatably receiving a memory card there between, said rails extending between the closed mating header end and the connector end to form a card holder frame having an inward side, an outward side, an upper surface and a lower surface, where each said rail has an inward transverse slot at about the midpoint and each rail is defined by an outer wall having an inwardly directed lower wall extending between said open connector end and said transverse slot and an inwardly directed upper wall between said transverse slot and said closed mating header, where each said lower wall is connected by a rib and where a lower joint between said outer wall and said inwardly directed lower wall is characterized by a recess extending a predetermined distance along said lower joint and an upper joint between said outer wall and said inwardly directed upper wall is characterized by a recess extending a predetermined distance along said upper joint; and a pair of cover plates disposed on either side of said card holder frame having an exterior surface and an interior surface and a raised central area extending from the exterior surface; wherein said card holder frame and cover plates are constructed of electrically conductive and heat conductive materials and said memory card assembly is formed by mounting said memory card in said card holder so that said ground trace continuously contacts said lower and upper walls of said card frame and tightly contacting the cover plates on said upper surface and said lower surface of said card holder frame to form two electrically isolated compartments.