Flared microwave feed horns and waveguide transitions
US4604627A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1984 |
| Grant date | Aug 5, 1986 |
| Priority date | — |
| Expiry date | Jan 11, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A horn-reflector antenna comprising a paraboloidal reflector for transmitting and receiving microwave energy, and a flared feed horn for guiding microwave energy to and from the reflector, the longitudinal shape of at least a section of the horn at the end where the horn begins to flare outwardly being defined by the equation ##EQU1## where R is the transverse dimension from the longitudinal axis of the horn to the side wall of the horn 1 is the axial distance along the horn measured from the end where the horn begins to flare outwardly, R.sub.1 and R.sub.2 are the radii of the horn at opposite ends of the horn section defined by the equation, L is the axial length of the horn section defined by the equation, and the exponent p has a value greater than two and less than about 7, to effect a substantial reduction in the TM.sub.11 mode level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.