Multi-band antenna for simultaneously communicating linear polarity and circular polarity signals
US8487826B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 1, 2010 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Oct 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/242
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Multi-band antennas for simultaneously communicating linear polarity low-band signals and circular polarity high-band signals via a single antenna horn structure. The antennas horn structures have circular and oblong cross-sections. Strategic location and orientation of low-band and high-band ports with respect to internal ridges in transition sections and the major and minor axes of the oblong horn allows the antenna to simultaneously manipulate the high-band circular polarity signal without affecting the linear polarity low-band signals. The oblong horn shape and ridges may apply additive or oppositely sloped differential phase shifts to the linear components of the circular polarity high-band signal. For the horns with circular cross-section, the internal ridges may apply additive or oppositely sloped differential phase shifts to polarize the circular polarity high band signals without assistance from the internal shape of the horn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.