Systems and methods for a dual band antenna for an internal medical device
US9431694B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Apr 3, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/371
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dual band antenna mounted to a case of an implantable medical device (IMD) for implant within a patient is provided. The dual band antenna includes a first antenna sub-structure (FAS) and a second antenna sub-structure (SAS) each separately tuned to match a corresponding first and second resonant frequency, by adjusting at least one of relative lengths of the FAS and SAS, a capacitance of the FAS, a location of the SAS relative to the FAS and a cross-sectional area of conducting elements forming the components of the antenna. The FAS is formed as an inverted E-shaped antenna having three branches. The first branch of the antenna is capacitive, a second branch provides a radio frequency signal feed and a third branch provides a shunt to ground. The SAS is formed as a mono-pole antenna that is formed integral with, and extends from, the FAS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.