Apparatus and method for improving r.f. isolation between adjacent antennas
US4233607A · kind A · utility
17Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1977 |
| Grant date | Nov 11, 1980 |
| Priority date | — |
| Expiry date | Oct 28, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/29
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for improving the r.f. isolation between a transmitting and receiving antenna disposed at respectively corresponding spaced apart but relatively adjacent locations. A special compensation radiator is provided at the transmitting and/or receiving antenna site and fed from the same r.f. input/output which feeds the main antenna. The direction, magnitude and phase of r.f. energy radiated and/or received from the compensating radiator are chosen so as to substantially cancel the undesirable r.f. energy otherwise directly received by the receiving antenna from the transmitting antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.