Loop antenna and radio frequency tag
US9563838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Apr 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A loop antenna includes first and second conductors configured to have conductivity, the first conductor including first and second patterns, the first pattern being provided along a first surface and including a first feed point, and the second pattern being coupled to the first pattern at a first end of the first surface and being provided to oppose the first pattern; and a second conductor configured to have conductivity, the second conductor including third and fourth patterns, the third pattern being provided on the first surface with a gap generating a capacitance between the first pattern and including a second feed point, the fourth pattern being electrically coupled to the third pattern at a second end opposing the first end on the first surface, the fourth pattern overlapping the second pattern so as to cause capacitive coupling or being connected to the second pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.