Patent ID: 9692136
Date: 2017-06-27
CPC Classifications: H01Q

Claim:
1. A monocone antenna comprising: a conical radiation element having a feed point at a vertex of the conical radiation element being connected to a feed transmission line; a capacitive ring radially outside of the conical radiation element and in proximity to the conical radiation element, the capacitive ring being conductive and providing capacitance to the monocone antenna, the capacitive ring being connected to a ground plane of the monocone antenna; and a substrate having a base, a top and a side wall between the base and the top, the substrate having a conical cavity with the conical radiation element positioned in the conical cavity, the capacitive ring being positioned on the base, the top and the side wall, wherein the substrate has a mounting flange at the top, the mounting flange having an upper surface, a lower surface and a side surface between the upper surface and the lower surface, the capacitive ring extending along the upper surface, the side surface and the lower surface.