Active balun
US4994755A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1989 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | May 22, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/198
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A double balun circuit is provided by connecting two pairs of circut types. The first circuit, a distributed divider circuit, includes first and second pluralities of field effect transistors, a common input transmission line, and a first and second output transmission lines. The common input transmission line is disposed to successively couple the input electrodes of each transistor of both the first and second pluralities of transistors. The output lines are disposed to successively couple the output electrodes of the respective ones of the plurities of transistors. Each output transmission line is coupled to one of the pair of output terminals of the circuit. A pair of inverter circuits comprised of an input transmission line, a plurality of field effect transistors, and an output transmission line having input and output electrodes successively coupled by respective input and output transmission line networks are coupled between the output electrodes of each one of a pair of divider circuits, such that an input electrode at the input side of the inverter circuit is coupled to one of the outputs of the divider circuit, whereas an input terminal coupled to the output side of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.