Patent ID: 8884825

Claim:
A radio frequency multi-band patch antenna having a lower edge, the patch antenna comprising: a conductive material on a surface of a substrate; the conductive material defining a first slot including: a first linear first-slot section projecting perpendicularly from the lower edge, into the patch antenna, to an inner end; and a second linear first-slot section projecting from the inner end in a direction parallel to the lower edge; the conductive material defining a second slot including: a first second-slot section projecting perpendicularly from the lower edge of the patch antenna into the patch antenna to a first end that is proximal to the first linear first-slot section; a second second-slot section projecting from the first end parallel to the lower edge to a second end distal from the first linear first-slot section; a third second-slot section projecting, from the second end perpendicular to the lower edge, in a direction away from the lower edge to a third end; and a fourth second-slot section projecting, from the third end in a direction parallel to the lower edge, toward the first linear first-slot section, the fourth second-slot section having a length less than a length of the second second-slot section; wherein the first linear first-slot section is dimensioned to be longer than the first second-slot section and the third second-slot section together; and wherein the first, second, third and fourth second-slot sections are disposed between the second linear first-slot section and the lower edge of the patch antenna, such that the second slot is nested entirely within the first slot.