Low-profile, very wide bandwidth aircraft communications antennas using advanced ground-plane techniques
US9147936B1 · kind B1 · utility
5Cited by
39References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2012 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Jun 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/26
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A low profile antenna using a cavity-backed central radiating surface surrounded by one or more ground plane surfaces. Passively reconfigurable structure provide frequency dependent coupling between the surfaces. The frequency dependent couplings may be implemented using meander line structures, Variable Impedance Transmission Lines (VITLs), or tunable VITLs that used interspersed electroactive sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.