Device for exciting a waveguide with circular polarization from a plane antenna
US5010348A · kind A · utility
39Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1988 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Nov 7, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/0435
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A device for exciting a waveguide with circular polarization from a plane antenna, said waveguide (10) being a rectilinear hollow waveguide closed at one of its ends (12), said antenna being excited by at least two coaxial ports (13, 14) fed in phase quadrature by a circuit including a hybrid coupler (15), and being constituted by a radiating plane metal pattern (11) disposed on the surface of an insulating substrate (18) closing the waveguide (10) perpendicularly to its axis of symmetry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.