Antenna for implantable medical devices formed on extension of RF circuit substrate and method for forming the same
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United States of America Patent
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Jul 26, 2016
Grant Date -
May 6, 2010
app pub date -
Dec 19, 2008
filing date -
Oct 31, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An antenna for an implantable medical device (IMD) is provided that is formed on the same substrate as the telemetry circuitry for the IMD. The telemetry circuitry is formed on a portion of the substrate within the interior of a housing for the IMD, while at least one antenna is formed on an exterior portion of the substrate on the exterior of the housing to allow for far field telemetry. At least one electrical interconnect is formed on the substrate for connecting the antenna to the telemetry circuitry, where the electrical interconnect may comprise a controlled impedance line to minimize loss. A conformally-shaped hermetic cover, such as a ceramic material, may be formed in a desired shape around the exterior portion of the substrate and antenna and cofired together to form a monolithic structure encasing the antenna and exterior portion of the substrate.
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