Distributed beam steering computer
US4445119A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1981 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Apr 30, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/36
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A distributive beam steering computer network for a radar phased array antenna is disclosed which provides direct drive for individual antenna phase shifter elements using a plurality of microcomputers co-located with each phase shifter. The microcomputers calculate the phase shift based on constants stored in a ROM which is located in each microcomputer and phase shift data comprising sin .alpha., sin .beta., and 1/.lambda. signals are distributed to all microcomputers over a single serial data line. The constants required for each shifter are different, and therefore, the ROM in each microcomputer is programmed for a specific location in an array antenna. A phase shift steering command for each element of the phased array antenna is calculated using a shift-and-add multiplication algorithm which is hard-wired into each microcomputer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.