Patent ID: 8564491

Claim:
A wideband antenna element with enhanced operating capability in predetermined ranges, comprising: a substrate; a first substrate surface, a portion of which is covered with a conductive material, and a portion of which is uncovered; said conductive material forming a pair of half elements having substantially similar shapes, said half elements each extending in opposite directions to distal tips; a first cavity formed by said uncovered portion in between said pair of half elements; said first cavity having a mouth portion, said mouth portion beginning at a first edge along a line extending between said distal tips; said mouth portion reducing in cross section from a widest point to a central point, according to a first slope of opposing flare angles of both edges of said two half elements facing said mouth portion; said mouth decreasing in cross section according to a second slope of the flare angles said both edges of said two half elements to a secondary point; said mouth decreasing in cross section according to a third slope of the flare angles of said both edges, from said secondary point, said third portion of said first cavity positioned in between said two half elements and extending to a narrowest point in between said pair of half elements; said first cavity thereafter extending away from said narrowest point in a curved extending into a first one of said two half elements; and a feedline electrically communicating at a first end with a second one of said two half elements from said first one, and adapted at a second end for electrical communication with an RF receiver or transceiver.