Communication employing triply-polarized transmissions
US6317098A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2000 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Jan 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Problems of fading in a multi-path environment are ameliorated, and the presence of reflective surfaces is turned from a disadvantage to an advantage, by employing a third polarization direction that effectively creates a third communication channel. This third communication channel can be used to send more information, or to send information with enhanced spatial diversity to thereby improve the overall communication performance. A transmitted signal with three polarization directions is created with a transmitter having, illustratively, three dipole antennas that are spatially orthogonal to each other. A received signal having energy content in three polarization directions is detected by a receiver having, illustratively, three dipole antennas that are spatially orthogonal to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.