Compact low frequency radio antenna
| DWPI Title: Radio antenna structure comprises dielectric layer on conductive ground layer, conductive plates, conductive free-standing radiation structure and attaching mechanism to attach electrical feed line to conductive plates |
| Abstract: An antenna is disclosed that comprises a pair of conductive, orthogonal arches and a pair of conductive annular sector plates, wherein adjacent legs of each arch are fastened to one of the annular sector plates and the opposite adjacent pair of legs is fastened to the remaining annular sector plate. The entire antenna structure is spaced apart from a conductive ground plane by a thin dielectric medium. The antenna is driven by a feed conduit passing through the conductive ground plane and dielectric medium and attached to one of the annular sector plates, wherein the two orthogonal arched act as a pair of crossed dipole elements. This arrangement of elements provides a radiation pattern that is largely omni-directional above the horizon. |
| Use: A radio antenna structure. |
| Advantage: The antenna is compact, mountable to a conductive surface and has nearly constant gain over a hemisphere of solid angle, thus making it omni-directional when located near the surface of the earth. |
| Novelty: A radio antenna structure (10) comprises dielectric layer on conductive ground layer, first and second conductive plates on dielectric layer with distal ends arranged parallel to one another to form air gaps (15), conductive free-standing radiation structure (20) in electrical communication with first and second conductive plates comprising pair(s) of oppositely directed radiator elements extending from a common center to one of conductive plates, and attaching mechanism to attach electrical feed line that drives radio frequency signal through radiation structure to one of conductive plates. |
| Filed: 3/12/2007 |
| Application Number: US2007717295A |
| Tech ID: SD 8607.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
| Data from Derwent World Patents Index, provided by Clarivate All rights reserved. Republication or redistribution of Clarivate content, including by framing or similar means, is prohibited without the prior written consent of Clarivate. Clarivate and its logo, as well as all other trademarks used herein are trademarks of their respective owners and used under license. |