Zero to one hundred and eight-degree active phase shifter for microwave frequencies
US4831336A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 20, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Jan 20, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/20
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A zero to one hundred and eight-degree active phase shifter for microwave frequencies contains a differential input amplifier having an inverting output (.beta.V) and a non-inverting output (.alpha.V) and a first (T.sub.11, T.sub.12) and a second (T.sub.13, T.sub.14) output stage of the push-pull type realized with MES-transistors and each comprising an inverting input and a non-inverting input. The inverting output (.beta.V) of the input amplifier controls the inverting input (T.sub.12) of the first output stage and the non-inverting input (T.sub.13) of the second output stage. The non-inverting output (.alpha.V) of the input amplifier controls the non-inverting input (T.sub.11) of the first output stage and the inverting input (T.sub.14) of the second output stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.