Patent ID: 8860625

Claim:
An antenna assembly comprising: a feed network including one or more transmission lines; an array of antennas coupled to the feed network; a first ground plane; a second ground plane spaced apart from the first ground plane with a space therebetween; and at least one pair of spacers positioned on opposite sides of and penetrating a substrate that includes the transmission lines and interlocked to one another through one or more openings in the substrate, the at least one pair of spacers structured to suspend the transmission lines of the feed network within the space between the first and second ground planes and to maintain a distance separating the substrate from the first ground plane and from the second ground plane, wherein one of the at least one pair of spacers is disposed between the substrate and the first ground plane, but does not pass through any opening in the first ground plane and the other one of the at least one pair of spacers is disposed between the substrate and the second ground plane, but does not pass through any opening in the second ground plane.