Sample-and-hold phase shifter control voltage distribution in a phased array utilizing voltage-controlled phase shift devices
US6856216B1 · kind B1 · utility
2Cited by
3References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 6, 2003 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Oct 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/38
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phase shift control voltage distribution scheme for a phased array utilizing voltage-proportional phase shift devices employs a digital-to-analog converter that supplies respectively different analog voltages to a sample-and-hold switch network coupled to analog voltage control inputs of the plurality of voltage-proportional phase shift devices. In order to impart a phase shift control voltage to one or more phase shift elements of the array, a control unit supplies a prescribed combination of a digital control code to the digital-to-analog converter and a switch control code to sample-and-hold switches of the switch network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.