Small broadband loop antenna for near field applications
US8816909B2 · kind B2 · utility
7Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2012 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Oct 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing a broadband near field of an antenna are disclosed. A small broadband loop antenna may include a printed circuit board (PCB) substrate with multiple layers. Printed on the PCB substrate are dual loops sharing a same driver circuit, an impedance matching network, a primary ground layer and a conductive layer. A shorting via connects the dual loops to a ground plane. The antenna may be tuned to a desired operating frequency by adjusting parameters of the loop, such as the position of the shorting via.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.