Composite rooftop antenna for terrestrial and satellite reception
US5859618A · kind A · utility
179Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1996 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Dec 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q19/17
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna structure includes a plurality of vertical directed antennas mounted on an insulated cylindrical substrate. A parabolic reflecting antenna is mounted at one end of the cylindrical substrate cavity and a dielectric lens admits radiation through the cylindrical cavity to the parabolic reflector. Optical detectors are located on the cylindrical substrate periphery and exposed to optical signals through an InfraRed (IR) optical filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.