Vector modulator phase shifter
US4977382A · kind A · utility
17Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1988 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Aug 23, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/185
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A monolithic microwave integrated circuit (MMIC) phase shifter is implemented in push-pull configuration with the quadrant selection and vector modulation functions combined. These functions are provided by four sets of adjustable gate-width dual-gate FETs and a pair of lumped element filter networks with a relative differential phase shift of 90.degree..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.