Coaxial RF matching transformer having line sections simultaneous adjustable while retaining a fix transformer line length
US4532483A · kind A · utility
14Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 1983 |
| Grant date | Jul 30, 1985 |
| Priority date | — |
| Expiry date | May 18, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio-frequency matching transformer including a wave guide (W) having a fixed length. The waveguide is subdivided into sections (W.sub.1, W.sub.2) which have different characteristic impedances and the lengths of which are interdependently adjustable. A hollow cylinder is provided within the waveguide displaceable therein such that the operating frequency and the transformation ratio can be adjusted within wide ranges without a conversion of the transformer being required. This results in considerable advantages with respect to the known quarter-wave transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.