Eight-shaped RF balun
US8427388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2010 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Oct 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2001/0078
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Symmetrical eight-shaped balun (BALanced-to-UNbalanced converter) comprising a first and second eye, each eye comprising conducting tracks forming turns. The eyes comprise an equal number of primary turns that form a first conducting path from a first terminal to a second terminal, in which in operation electrical current flows in a first direction in a first eye and in a second direction in a second eye. Moreover, the eyes further comprise an equal number of secondary turns that form a second conducting path from a third terminal to a fourth terminal, in which in operation electrical current flows in a first direction in a first eye and in a second direction in a second eye. The geometrical and electrical middle points of primary and secondary turns are all superposed and further are located in the same plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.