Subwavelength monopulse antenna
US4148035A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1977 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Dec 14, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A sum channel waveguide is excited in a TE.sub.11 mode to cause a radio frequency wave to propagate therefrom through a cylindrical multimode waveguide. The wave propagates via a discontinuity that causes the multimode waveguide to be excited in the TE.sub.11 mode and higher order modes. The multimode waveguide is coupled to free space via a dielectric lens and a cup shaped matching section, whereby the wave causes a beam to be radiated from the lens. The cavity of the multimode waveguide is contiguous with a plurality of arcuate cavities of a difference channel waveguide. The beam is deflected in response to excitation of the arcuate cavities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.