Variable dielectric constant antenna having split ground electrode
US10505273B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2019 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Jun 10, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multi-layer antenna having radiation layer including radiating elements; transmission layer including delay lines for coupling the RF signal to the radiating elements; control layer comprising variable dielectric constant (VDC) plate; RF coupling layer including arrangements for coupling RF signal to each of the delay lines; ground layer functioning as ground for the RF signal. The ground layer may also function as ground for the VDC control signal. The ground plane may comprise a plurality of conductive ground patches, each conductive ground patch separated from a neighboring conductive ground patch by a distance that appears as a break for a square wave signal of up to 400 Hz, but appears as a short for the RF signal. It is beneficial to make the separation not larger than a tenth of the wavelength of the RF signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.