Enhanced direct radiating array
US6295026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1999 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Nov 19, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus (800) and method (1000) for forming a shapeable and directable composite beam (305) from a plurality of pixel beams (302). The apparatus (800) includes a front-end unit (810) which communicates element signals through antenna array elements (808). The apparatus (800) also includes a back-end unit (850) which forms the composite beam from a set of pixel beams by converting between a composite signal and a set of corresponding pixel signals. The back-end unit (850) further adjusts the amplitude and phase of the set of pixel signals to form the composite beam. The apparatus (800) further includes an interconnecting beamforming network (820) interposed between the back-end unit (850) and the front-end unit (810) which couples the back-end unit (850) to the front-end unit (810) by converting between the pixel signals of the back-end unit (850) and the element signals of the front-end unit (810). The method (1100) includes determining a desired shape and direction for the composite beam (1110). The method (1100) then selects a set of pixel beams (1120) with which to form the composite beam. The method (1100) converts between the composite signal and a set of pixel signals co…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.