Antenna reflector having a configured surface with separated focuses for covering identical surface areas and method for ascertaining the configured surface
US6255997A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1999 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Dec 6, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q19/195
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A reflector for reflecting electromagnetic waves has a configured surface for these waves whereby localized deformations or configurations such as bumps (B) and dents (D) of the reflector (1) are so constructed that the reflector cooperates with several focuses (10A, 10B; 110A, 110B) which are spatially separated from the reflector proper. These focuses are so arranged that the electromagnetic beams emanating from the respective radiators (4A, 4B; 40A, 40B) and are directed onto the reflector can be directed through the reflector onto a common region (3A, 3B) to be illuminated, whereby particularly the beams may be tuned to different frequencies or for operation in different frequency bands. Such reflectors are particularly useful in antenna systems for communications such as satellite communications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.