Phase shifter and power amplifier and magnetic resonance imaging apparatus
US8760165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2011 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Oct 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3614
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A phase shifter is provided. The phase shifter includes a first phase shifter that is continuously adjustable within a range of 0 degrees to 90 degrees, two 4-way switches each configured to selectively switch on one of a capacitance, an inductance, an open circuit, and a short circuit under control of a control voltage, and a bridge. A first input end and a first output end of said bridge are respectively connected to a first 4-way switch of the two 4-way switches. A second input end of said bridge is connected to an output end of said first phase shifter or a second output end of said bridge is connected to an input end of said first phase shifter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.