Radio station with circularly polarised antennas
US6823177B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1999 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Apr 24, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio station including two antennas combined with respective first and second hybrid transmission polarization couplers is disclosed. Each antenna is arranged to generate two orthogonal electric field components in response to two respective quadrature radio signals from the corresponding polarization coupler. The station further includes at least one hybrid distribution coupler with a first output connected to a first input of the first polarization coupler and a second output connected to a first input of the second polarization coupler and at least one radio signal source delivering a radio signal to a first input of the distribution coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.