Frequency band filter
US4311975A · kind A · utility
2Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1979 |
| Grant date | Jan 19, 1982 |
| Priority date | — |
| Expiry date | Dec 18, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/202
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A frequency band filter includes a plurality of coupled elementary resonator cavities defined by pistons disposed within a coaxial line. The position of the pistons along the line is adjustable thereby providing selectable tuning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.