Multiplexed microwave filter, and method of adjusting such a filter
US4980662A · kind A · utility
14Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1989 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | May 26, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/12
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiplexed microwave filter comprising at least two elementary filters (10, 11) provided with respective coupling antennas of crankshaft or any other shape, and including a common access (14), which access is provided with a crankshaft-shaped coupling antenna which is rotatable about its axis in order to adjust coupling between the antenna and the corresponding elementary filter, in which the common access is situated astride the various elementary filters and includes as many crankshaft-shaped antennas (22, 23) as there are elementary filters (10, 11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.