Device for reflecting electromagnetic radiation
US7224314B2 · kind B2 · utility
10Cited by
10References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 24, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Jan 12, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10166
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A reflectarray utilizes switching devices with non-ideal impedance characteristics to vary the impedance of reflecting elements. The antennas of the reflecting elements are configured as a function of the impedance of the non-ideal switching devices to provide optimal phase-amplitude performance. In particular, the antennas are configured such that the impedance of each antenna is proportional to the square root of the impedance of the non-ideal switching devices when in an on state and when in an off state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.