Cassegrainian antenna with beam waveguide feed to reduce spillover
US4186402A · kind A · utility
8Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1978 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Sep 28, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q19/191
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An aerial system (antenna system) comprises PA1 dual-reflector aerial consisting of a main reflector and subreflector; PA1 a primary feed whose input and output ends are fixed for elevation and azimuth rotation of said dual-reflector aerial; PA1 a plane reflector which is turned together with said dual-reflector aerial around an elevation rotating axis; PA1 a first curved reflector for reflecting waves generated from said primary feed; and PA1 second and third curved reflectors which sequentially reflect to lead the wave reflected by said first curved reflector to said plane reflector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.