Phase Shifter having parallel RC networks
US5043654A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1990 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Jun 6, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/21
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Phase shifter to which are applied two signals in a phase opposition (v, -v) is constituted by a first series circuit of a resistor and a capacitor (R.sub.1, C.sub.1), and a second series circuit of a resistor and a capacitor (R.sub.2, C.sub.2). So that neither the relative amplitudes nor the relative phases of all the signals used at the outputs (5, 6, 7, 8) are degraded by the impedance of the stages that follow, the phase shifter includes a first network of a resistor and a capacitor connected in parallel (C.sub.3, R.sub.3), and a second network of a resistor and a capacitor connected in parallel (C.sub.4, R.sub.4). Both the four resistors and the four capacitors of the phase shifter are each substantially equal in value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.