Antenna which assures high speed data rate transmission links between satellites and between satellites and ground stations
US5262790A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1991 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Oct 11, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna is composed of a number of subarray radiating elements, with an aperiodic geometry, which assures connections between satellites and between satellites and ground stations. The aperiodic structure makes it possible to eliminate possible interference acting on the connection. The possible presence of the array grating lobes during steering of the array beams in the angular sector of interest is reduced. The presence of a grating lobe within the field of view which can cause interference with another low orbiting satellite is avoided, so as to improve reception quality characteristics. The invention is applicable to microwave antennas and space-borne systems by eliminating the presence of grating lobes in the field of view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.