Ultra-wideband, omni-directional, low distortion coaxial antenna
| DWPI Title: Omni-directional ultra-wideband antenna for e.g. producing omni-directional pattern, has conductive elements including first and second surfaces of revolution about central axis, where second and third surfaces have different shapes |
| Abstract: An antenna for producing an omni-directional pattern, and using all frequencies of a frequency range simultaneously, is provided with first and second electrically conductive elements disposed coaxially relative to a central axis. The first element has a first surface of revolution about the axis, the first surface of revolution tapering radially outwardly while extending axially away from the second element to terminate at a first axial end of the first element. The second element has a second surface of revolution about the axis, the second surface of revolution tapering radially outwardly while extending axially toward the first element to terminate at a first axial end of the second element. The first and second surfaces of revolution overlap one another radially and axially, and are mutually non-conformal. |
| Use: Omni-directional ultra-wideband antenna for producing an omni-directional pattern and using frequencies of a frequency range i.e. ultra-wideband in multiple-radio undetectable communication i.e. ultra-low power frequency spreading system. |
| Advantage: The antenna maintains a maximum omni-directional horizontal gain that is near a center of a ultra-wideband band, thus enabling maximum signal power to be transmitted at a maximum RF power for direct-sequence spread spectrum signals that use the entire UWB bandwidth simultaneously, and hence exhibiting a lower level of phase distortion. |
| Novelty: The antenna has conductive elements (11, 12) including a first surface (11A) and a second surface of revolution about a central axis (10), respectively, where the surfaces taper radially outwardly while extending axially away from and toward the elements to terminate at an axial end of the elements, respectively. The second surface overlaps the first surface radially and axially. One of the elements includes a third surface of revolution about the axis that extends radially outwardly as far as the second surface, where the second and third surfaces have respectively different shapes. |
| Filed: 5/4/2012 |
| Application Number: US13464056A |
| Tech ID: SD 11784.0 |
| 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. |
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