Disk-shaped antenna with polarization adjustment arrangement
US6956529B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Mar 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/0464
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention is to provide a disk-shaped antenna comprising a ring-shaped metal loop and a ground metal face respectively on top and bottom of a substrate, wherein a center hole is provided in each of the substrate and the ground metal face, a central conductor of a coaxial is inserted through the holes and connected to at least one rotatable metal band on the top of the substrate, two ends of the metal band are adapted to contact the metal loop, and braided outside conductor of the coaxial contacts the ground metal face. Thus, an angle between two metal bands is adapted to change by rotating one about the other for adjusting current loop and potential difference in an electric field perpendicular to the plane of the metal loop, thereby controlling the spiral of electromagnetic wave transmitted from the disk-shaped antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.