Artificial magnetic conductor, and antenna
US9397406B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2011 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Apr 29, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2495
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An artificial magnetic conductor having a surface impedance greater than 100Ω, includes a ground plane, and a frequency-selective surface that is transparent for certain wavelengths and reflective for a range of wavelengths. The frequency-selective surface includes an array of conductive resonant elements arranged alongside one another in at least two different directions parallel to the ground plane. Each of these conductive resonant elements includes a sub-layer of ferromagnetic material having a relative permeability greater than 10 at a frequency of 2 GHz and having a thickness less than the skin thickness of the ferromagnetic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.