Tapered slot antenna with a curved ground plane

摘要

An apparatus includes an antenna element and a curved ground plane positioned beneath the antenna element. The antenna element has a height h and a first end with a tapered width, where h is approximately equal to the distance of a width-wise cross-sectional curve of the curved ground plane. The width of the curved ground plane is less than or equal to ½ h. A load may be positioned on top of a second end of the antenna element. The second end of the antenna element has a thickness greater than the first end and less than a thickness of the load. The curved ground plane may be substantially hemispherical in shape or may have a tapered height and increase in width from a first end to a second end.

主权项

1. An apparatus comprising:
an antenna element having a height h, a first side, a second side, a first end, a second end, and a thickness T, wherein the first side and the second side define a width W of the antenna element, wherein the first side is flat and the second side tapers from the first end to the second end such that the first end has a tapered width; and a curved ground plane positioned beneath the first end, wherein h is approximately equal to the distance of a cross-sectional curve taken along a width w of the curved ground plane, wherein the thickness T is less than the width w; and wherein the width w is less than or equal to ½ h; and wherein the curved ground plane is substantially hemispherical in shape; and wherein the antenna element and the curved ground plane form a tapered slot antenna.