Directional scanning circular phased array antenna
US5243358A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1993 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Jan 11, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A directional scanning antenna includes a circular array of a plurality of antenna elements extending several wavelengths in diameter. The number of antenna elements are sufficient to form a plurality of directionally-oriented subsets of active antenna elements and associated subsets of parasitic antenna elements. An antenna feed system provides connections to each one of the plurality of antenna elements that include connections to electronically variable reactances and connections to a source or receiver of electromagnetic energy. The antenna feed system is controllable to provide connections between the subsets of active antenna elements providing wave propagation and reception in one or more directions and to provide connections between a plurality of the remainder of antenna elements in associated subsets of parasitic antenna elements to assist the directionality of the antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.