Method for controlling the tuning to a communications frequency of an antenna connected to a component designed for contactless communication and corresponding system
US10419058B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2017 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Oct 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A contactless component, connected to an antenna, includes a plurality of terminals and a first, second, third, and fourth plurality of switchable auxiliary capacitors. The plurality of terminals include a first output terminal, a second output terminal, a first auxiliary terminal, and a second auxiliary terminal. Each of the first plurality of switchable auxiliary capacitors is connected between the first auxiliary terminal and the first output terminal. Each of the second plurality of switchable auxiliary capacitors is coupled between the first auxiliary terminal and a neutral point. Each of the third plurality of switchable auxiliary capacitors is coupled between the second auxiliary terminal and the second output terminal of the contactless component. Each of the fourth plurality of switchable auxiliary capacitors is coupled between the second auxiliary terminal and the neutral point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.