Dual band signal receiver
US5461394A · kind A · utility
30Cited by
25References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Jun 21, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/0258
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A dual band signal receiver is provided with relatively coaxial antenna assemblies electromagnetically coupled to respective upper and lower band rectangular waveguides and ports through suitable polarization switching assemblies. The upper band rotatable antenna assembly consists of a dipole feed having driven dipole elements, parasitic dipole elements and a corner reflector element electromagnetically coupled to the upper band rectangular waveguide by a suitable transmission line extending substantially along the longitudinal axis or centerline of the lower band cylindrical waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.