Ultra wide band digital phase shifter
US10270146B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2016 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Dec 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/19
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention discloses an ultra wide band digital phase shifter, wherein the phase shifter includes a coupler, a first impedance network and a second impedance network. The coupler is cascaded by spiral inductor coupling units; each stage of spiral inductive coupling unit includes a first spiral inductor and a second spiral inductor coupled mutually; multistage cascade of the spiral inductor coupling units is implemented through the series connection of each stage of first spiral inductors and the series connection of each stage of second spiral inductors; and the coupling interval or microstrip band width of each stage of spiral inductor coupling unit in the coupler from the exterior to the interior decreases gradually. The impedance networks are implemented using LC circuits and switching elements, and the states of the impedance networks are switched by a switch, thus producing phase displacement; therefore, the impedance network is rational in structure and is easy to implement; the phase shifter has the advantages of compact structure, small area occupation and good wideband character and has larger advantages and application space in integrated chip applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.