Method of shifting the phase of an electrical signal and a phase-shifter based on this method
US5294841A · kind A · utility
3Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1991 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Dec 27, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/22
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of phase-shifting an electrical signal (E) of given amplitude and phase angle. The basic function in the method comprises vectorial adding (.SIGMA.) of the two input signals (E1, E2) of the same amplitude but with different phase angles, an operator to correct the amplitude of the vectorial sum (.SIGMA.1), and an operator (C) to select one of the three signals (E1, E2, .SIGMA.1), which have different phase angles. The phase-shifter operates iteratively until the required phase-shift is obtained. All applications, mainly in the microwave range, to radars, telecommunications, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.