Antenna for providing a dielectrically induced, directionally dependent radiation pattern phase shift
US3946396A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1974 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Mar 6, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q19/09
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna for providing a radiation pattern in which the phase of the emitted electromagnetic waves varies with direction from the antenna. The emitted electromagnetic waves propagate through a region, associated with the antenna, having dielectric properties which are a function of the direction of propagation. The varying dielectric properties result in a direction-dependent phase shift for the emitted electromagnetic waves. By providing a reference radiation pattern having a phase-shift independent of direction, the direction from the antenna can be determined by comparison of the phases of the reference and of the direction-dependent electromagnetic waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.